They're more concerned with selling flash and giving demos and selling something that doesn't work as expected vs taking the proper amount of time to train the models with up to date info?

Perhaps it illustrates they have people giving demos that don't actually understand or notice obvious discrepancies? This doesn't inspire confidence.

Yes, this feature's only been 'out' for 3 weeks, but obviously the resharper team knew about it ahead of time and had a definition of the feature to develop against. Are we saying the AI can only be trained on 'released' stuff, but other tooling can work against upcoming specs?