> They are western centric, and unfortunately, in this current state of the web they're still essentially the authority on DNS.
I‘m curious to see your evidence on that or which future state you would see as a more fortunate one.
Questioning why the distributed cluster runs on nodes 'a' and 'b' alone doesn't necessarily imply that nodes 'c', 'd' and 'e' are any better or worse, today or in future.
Alternatively, you can maintain the NSes for all the TLDs you are particularly interested in, and alert yourself if they change to something you don't recognize.
Finally, keep in mind that whatever you do, you need to have multiple vantage points to the internet. There's not a lot stopping your ISP from not delivering you to the right host when you try to talk to it. E.g. your ISP can fake the DNS responses.