Your choice is making sure to buy a well supported, timely updated device.
Sure, that choice is currently available, but it wasn’t when many of those devices were purchased. For example, I’m currently using a Galaxy S10e which had just about the best support of any Android phone. Now I’m stuck on Android 12. I actually planned on using it with Lineage, but somewhere between my S7 and the S10e, Samsung stopped using Exynos in their Canadian phones, and I didn’t realize it. The hardware is still more than good, and as others have pointed out, with Play Service updates, the software isn’t really obsolete either, it’s just a concern I’m not getting security updates.
I too wish the developer would respond, but I don’t think this is the catastrophe people are making it out to be. One comment seems to explain why these binaries are included: