Big deal. I just installed ubuntu 21.04 on a ten-year-old machine. There is no non-evil reason why the latest OS cannot run on yesterday's hardware.
"There is no non-evil reason"
The reason is that someone needs to sit down, open up Xcode, and compile it for the old hardware, fix all the compilation issues that crop up, and then that OS needs to be tested on every variation of that hardware that was ever released anywhere in the world.
If you don't want to do that because the userbase is dwindling and you aren't running a charity and/or open source project.....how is that evil??? Cheap, maybe even greedy - but evil??