I think there is room inbetween "dies to a housecat and CERTAINLY dies to any single lucky roll of a cannon-fodder orc" and "ZOMG starts at 4th level!"
Riddle me this.... perhaps the 1st level fighter has more hitpoints and 2-3 viable maneuvers. This is quite a bit more powerful than a current 1st level fighter,
IF all you're doing is comparing them to each other on paper. But they are facing foes that work under entirely different design principles. Maybe goblins are now swarming enemies meant to be encountered in very large groups so that larger hitpoint pool gets eaten away bit by bit even as you use your neat maneuvers to plow down a few a round (result: more heroic looking and feeling without that fighter being ZOMG overpowered). What if the kobolds and goblins and such are ALSO "more powerful' such that the commoner NPCs actually ARE in danger from them relative to the heroic class PCs? (In the current system, that level 2 warrior head of the town guard is probably better suited to taking them on than most 1st level PCs)
They're apparently changing the entire system, and everyone is making comparisons as if each change is an isolated incident in the EXISTING game. That makes NO sense.