It's not a consipiracy theory. It's just the sort of thing that often happens when companies go public and start getting driven by greedy stockholders.
Companies that are really interested in providing value to their customers do something else, like provide upgrade pricing. This still gives the company incentive to provide a better product for the new version, to encourage people to buy the upgrade. If the new version isn't good enough, people won't upgrade. On the other hand, Autodesk instituted a policy of no longer giving upgrade pricing - you either get on their subscription, or you buy new seats every time. That means they lock in paying customers, and can release garbage, and then just tell everyone they'll fix the problems in a service pack, or in the next version...
OK, so I guess I'm railing against the whole idea of the Subscription policy, and not this particular change to Autodesk's initial policy. Still, as each year goes by and Autodesk software gets buggier and buggier, I can't help but think the whole idea of a Subscription was a really bad idea that does a dis-service to Autodesk's customers, even if it may make accounting easier.