Besides size, there's distance. Like it's annoying how UK and France look much further apart than they actually are, and every sea/air route appears to not take the shortest path. I'd be fine with this change if it weren't about trying to make Africa look more important. They're just fixing a misleading map.
Equal area projections don't preserve distance.
It's worth noting that Equal Earth isn't an equidistant projection. The upper bound on distance distortion is an order of magnitude less than Mercator's though.