Earlier quoted context omitted.
They want to be the registrar to be able to update your NS records. But ... that's not really important nor needed (So the answer to your question yes, it's likely artificial). Just use two anycast-ed IPs/domains. (Like Cloudflare.) The magic happens at BGP level. I considered CF as a domain registrar, but they don't allow setting the NS records. So you must use them. (They basically use sane no-nonsense domain regis…
> Just use two anycast-ed IPs/domains What are the brands offering DNS at a flat rate over anycasted IP over a few continents? Most of the offers I see are per query at high rates. Setting up my own ASN to do this would be too expansive in IPv4
There's HE.net's free DNS, and though they don't explicitly advertise as, it's anycasted. (Check via https://tools.keycdn.com/ping , try 216.66.80.18 [ns5.he.net].)
https://www.cloudns.net/premium/ seems to be quite affordable with no query limits :o