I see your point. So my idea of backpacking is taking a small-medium backpack and going hiking for 2 or 3 days, sleeping in a tent or in a in shelter / hut. I won't take any cooking stuff with me, just water, sandwiches and some clothes.
Ya, having done some hiking like that in Europe, mostly Germany, that sounds far more obtainable. First, as you said, you don’t need literally everything to survive for an extended period of time, you can afford the volume and mass. Second, since you’re only going out for 2-3 days, if the weather forecast isn’t great, you simply don’t bring the telescope. That’s a bigger deal than you might assume, but if you’ve been out in the wilderness for weeks/months you realize just how bad the weather can get in the mountains and that nothing, and I mean absolutely nothing at any price, stays totally dry/clean in the worst conditions. The mountaineers know what I’m talking about. Thus, for the American style of backpacking, a sealed set of binoculars is about perfect.
However, under a lighter European hiking, I could see carrying a small telescope. Most computerized/GoTo mounts are probably out of the question. Too many things to break, too heavy, too many batteries, etc. I have an 85mm refractor/spotting scope with a single variable eyepiece (8-24x) on a manual ball head and carbon fiber tripod that I would easily consider taking on such a trip. It’s just over 4lbs IIRC and not something I’d take on an American backpacking trip, but it was something I was considering for my Kungsledgen 2020 trip (all of it, not just the northern section)...COVID killed that plan. I probably would have fell back to the binoculars due to the one wilderness section requiring carrying about 5+ days of food resulting in a pack larger/heavier than I would prefer. However, it’s so dark out there, I’d have to bring something. Plan B as the binoculars. I have considering getting a nice monocular for those longer/faster trips.
I had to piece together that 85mm kit to get is as light as I did. It’s definitely not as stable as a traditional telescope system. I used lightweight camera tripod/ball head with an adapter plate. The shipping weight on your SkyWatcher link is 12kg. Now, some of that is packaging and manuals, but that’s mostly cardboard and foam. The actual telescope w/tripod probably weighs around 6+kg total? The Meade is lighter, but gathers less light and is a longer tube (700m focal length vs 400mm, not that the actual tube is that long, but it gives you a ball park). There’s probably things you can do to the system to make it lighter. I’d ditch the read dot because you’ll probably have a wide field eyepiece anyways. Cutting down the tripod legs or removing the extensions would help a lot. Remember, you’re only going to looking at the stars when the weather is nice and you just spent the day hiking, so sitting is probably nice and you likely have some sort of pad/camp chair around. Why would you need a standing tripod? I don’t know how those twist adjusters will work in the field, but a that could be swapped for simple ball head.
Lot’s of things you can do here, but of those two, I’d get the SkyWatcher over the Mead. Tripod on anything is going to need mods IMHO before you’ll want to carry the mass/volume. Totally workable though. If you’re careful, you might be able to get away with using your sleeping bag and water proof stuff sack that it should be going into to store the OTA. Stuff some of the bag into the stuff sack, put the tube in, stuff around it and seal. Pack that bag so the tube is vertical long your spine and mid-back. If that’s too risky, cardboard packing tubes could work, but they’re heavy. Carbon fiber tubes are too expensive. Thin walled PVC might work.
I’d probably carry the tripod on the outside of the pack. It can get wet/dirty and straps are easy. Carrying it vertical could be a problem since it would move the weight too far to one side or too far from your body. I’d probably try and carry it horizontal under the pack like some people carry pads. It’s now low (around butt level) and close to your body. As is, the length in any horizontal position is just going to be too wide (most tripods like this are going to be 0.8-1m in length), but if you mod it to <0.5m it should be fine.
Just some thoughts.