If a security flaw is discovered and patched, it is a good sign the manufacturer is standing by their product and providing support. AFAIK, tp link does push regular fw updates for their omada gear. I’ve had two in the last month.
In your case, I’d open a support ticket with that issue and see what tp link thinks directly. If you don’t like their reply or are ignored, you will have your answer on whether or not you should switch.
We live in a society.