As being on a number of those calls, its just a bunch of crap where they talk like a scripted bot reading from corporate buzzword bingo card over a slideshow. Their real intention is two fold. To sell you even more AWS complexity/services, and to provide "value" to their person of contact (which is person working in your company).
We're paying north of 500K per year in AWS support (which is a highway robbery), and in return you get a "team" of people supposedly dedicated to you, which sounds good in theory but you get a labirinth of irresponsiblity, stalling and frustration in reality.
So even when you want to reach out to that team you have to first to through L1 support which I'm sure will be replaced by bots soon (and no value will be lost) which is useful in 1 out of 10 cases. Then if you're not satisfied with L1's answer(s), then you try to escalate to your "dedicated" support team, then they schedule a call in three days time, or if that is around Friday, that means Monday etc.
Their goal is to stall so you figure and fix stuff on your own so they shield their own better quality teams. No wonder our top engineers just left all AWS communication and in cases where unavoidable they delegate this to junior people who still think they are getting something in return.