tl;dr: We are just being ignored, or placed at the lower priority.
As mentioned. Your concern, or our concern, happened before.
When Rog Phone 2 was released in 2019 with a stable A9, Rog Phone was struggling to get a stable A9 after the release of Rog Phone 2.
When Rog Phone 2 is being implemented with a rather unstable A10 in early 2020, Rog Phone is pretty much entering the obsoleted phase.
So presently, in the mid 2020, we know that Rog Phone 3 is gonna be released. Most probably during Q4 2020.
Judging by this trend of releases of announcements, the products and OS updates. It's no suprise to experience Deja Vu.
With that in mind, making sense or not don't matter anymore. Because it is clear that Asus don't care about released products, much less "old" products. Even if they do "care", the older products are never their priority.
Despite that, I don't think I've seen any reports from anyone on planned obsolescence being observed with the Rog Phone, yet.
So, I don't think it will be similar to the Apple situation that you've mentioned, where the company deliberately inject issues to the consumer's product, rendering it functioning improperly. But more of a "I care about our future potential customers much more than our existing customers" situation.
But if you think about it, Asus sure play their marketing strategy well for this product line. Just look at the 4 P's. It's doing so well. But yes, they totaly ignore the retention part of marketing. They know that we are suckers. Just look at the anticipations despite that complains.
With all these in mind. No, we probably won't be getting a stable A10, and it will be a privilege if Rog Phone 2 users can even get a A11 in future. The coming Rog Phone 3 will face the same issue that we are facing right now.