Photoshop was never built as an easy tool so powerful that even grandma can produce photo-realistic fake images in seconds. The new wave of AI powered editing tools are clearly on a new level.
This is like bringing your howitzer to a gun debate because they are kinda similar.
Generative AI is much easier than photoshop the same way that photoshop was much easier than trying to alter photos any other way. In both cases it is a completely new level.
A centrally-managed app will always be easier to use than a local self-service tool. But those local apps will keep trying to converge towards the ease of the hosted apps. Over time I expect the difference will become negligible (i.e. a 1-click install and it actually works)
This is like bringing your howitzer to a gun debate because they are kinda similar.