I guess the issue is that for lot of commercial work, "good enough, cheaper" is more attractive than "better than most, at the right price". Of course that's not a rule always, everywhere, but at scale it tends to be.
I agree there'll be a market for the ai stuff. It'll have to improve though. For example, say you get an illustration done and you say "yeah it's good but can you just modify it a bit and then I want 5 variations doing different actions with the same characters". The AI tools can't do that, they'll come up with completely different images for very minor prompt changes. And if the input set doesn't contain the desired action then they cannot generate it at all.
For now I think it'll only replace some low level commercial stuff and perhaps add images where there were none before.
For now I think it'll only replace some low level commercial stuff and perhaps add images where there were none before.