Egg-zackly !!! Could not agree more...
I've tried squinting with the binoviewers in the telescope, then I open my other eye and it's like "ahhhh yes, there it is". Just so much better with both eyes IMHO.
Another cool thing that someone can do if they don't mind squinting with just one eye, is to have a lower power eyepiece in one side, and a higher power eyepiece in the other side, and you could go back and forth for two different magnifications without having to change eyepieces.