Of course when higher level languages were first developed, senior engineers did not feel that the issue was an acceptable level :D
I'm seeing some junior devs get in way over their heads following AI advice. (I'm kind of developing a stock lecture about it…) I'm also seeing junior-to-intermediate devs use AI to explore and learn deep things they wouldn't have dared before. I'm seeing the dig into details that before they'd have left as unknowable.