No, it can be solved by one simple adjjustment...by you. The placement is fine. If it's a problem for you, then you are the problem.
Seriously now. I play on 10 worlds and fight every day on all but one...and as soon as it gets into Iron Age I will be fighting every day in it, too. No additional mouse movements have been required in any of my fights so far. I adjusted to the new placement of the "OK" button in seconds.
Yeah, my bad. GE and PVP Arena. If you all would like, I could go take a few GvG tiles just to test that...but I know there will be no problems doing that, either.
Since most of the people that are fine (or even happy) with the change don't come here, but the few that don't like it always do, it makes it look like this is an unpopular change. I doubt that it is. I would bet anything that the vast majority of players either don't care about it, didn't even notice it, or like it.
You do realize that it's only a tiny fraction of the player base that even participates in GvG, right? And of that tiny fraction, an even smaller fraction is possibly negatively affected by this. And as I said, I would bet that literally 90% of the active player base either likes it, doesn't care or hasn't even noticed it.