I have to agree, but I think maybe letting the Devs know that the reason I bypass the internal viewer is that it actually takes too long, jumps around on the page when making changes and slows the coding process a lot with all it's hesitations at every change. Not as handy as just opening the page after a few changes or so to see if it looks right.
The viewer I think could use some overall updating to make it more smooth when editing. when you have to wait a few seconds every time you make a change (find myself trying to type and paste really fast to beat the view updating to try to get more changes in before the hesitations), it just makes it more hassle than it's worth in usefulness.
Not sure if this is why everyone else bypasses it, but it's definitely why I don't use it. I'd love to sit with it in split frame permanently if it didn't do that so much