That's not coma. That my friends is collimation. It's either just out of collimation or there is something bad that jarred the cell, which is a more-than-collimation issue. It needs to go back whence it came. That is not going to be fixed by waiting for thermals to go away. That is not "a slight issue." That is ghastly. The scope is worthless until fixed or replaced. It might even be a simple fix for them that has the knowin'.
You can tell it's collimation because of the comet like appearance. You can attempt to collimate it yourself if it is out of warranty, but for me personally, I don't have the best capabilities when it comes to using screws with glass.
As I posted recently in EQUIPMENT, I have been pretty content with my 8x50 Meade finder scope which I bought because I wanted a finder with rear focus. It goes for about sixty bucks. The Tak finders that I have go new for about $300 (mine are used). Different finders on different rigs.
Anyhow I've had a couple of those Tak finders for 10+ years. The Meade I've had maybe, I dunno, somewhere between two and four. So this past weekend I heard it rattling when I was out in the field and I couldn't see through it, it was 70% vignetted. Next day I take it out and open it up. The lenses are OK, I was worried the internal one had broken. What was rattling around was a little module with the crosshairs in it. The modul is just pressure fitted into a recessed area. What was going on was that the pressure was no longer enough. Who knows why. I took some aluminum foil, wrapped it around the module, squished the whole thing in to the recessed area, and there you go, a fixed $60 finder.
The greater lesson here is the difference between expensive and cheap--at least one hopes. Cheap works right up until it figures out a way not to (sometimes out of the box!). Durable gear is--durable. I don't think I'll be finding crosshairs rattling around in the OTA of my Tak finders. I could be wrong. I've been wrong before. I have a Meade 8x50, blue, made in Taiwan back around 2000. I don't use it because no rear focus. It was cheap, and it is a tank. So durability is not always related to cost. But it often is, and as you climb up the ladder of refractors, the lens cells get more robust and accurate. The idea is not to fly to Zanzibar for an eclipse and find your refractor lenses are dislodged.
Does it matter? most of the time probably not. But I could have lost a night to that malfunction with the finder (it didn't matter, because we were soon clouded out in any case). Where it can be a problem is if you pack this scope up for a long vacation driving over sometimes rough roads, or for airline travel, hoping to catch some views at the destination. There you might have a problem. Or not. It will work until it doesn't.