I've noticed a near 1:1 overlap of people who advocate against shadow development, and people experiencing status anxiety about the fact that AI has proven that they barely pass the bar.
Some arguments about shadow development and IT are valid, like security and who takes ownership after the original developers leave, but they don't really account for the reality that organizations expand constantly, business needs are perpetually exploding and most development shops are so mired in business requirements and bureaucracy that there's genuinely no value involved with interacting with them.