I suppose you are speaking of A7 II? Overheating is a problem for video only, and fixed on the A6400. Their technology is ahead of competition, not "meh". But it is a shame they do not have full touch screen, for some reason.
This also contributes to extra sensor noise in long exposure shots in the dark, which Sony tries to mitigate with software. This leads to the infamous 'star eater' scenario.