I think that you have two factors here. GDC isn’t specific to PC gaming, and a lot of titles will see both PC and console releases.

For a game that is intended to see only a PC release, my guess is that that that might affect system requirements of the game, whereas for games that see console releases, things like “is the Playstation 6 going to be postponed” is a big deal if you were going to release a game for that hardware.