Yes, it is generally less restrictive, but… I have 4 domains, and now I have renewed all of them for the maximum amount. They will all expire after 2033. So unless I decide to add more domains (which is unlikely), I won’t spend a cent in the next ~9 years. I wonder if they really enforce it as it is written or they consider still the renewal an expense “split” over the duration.
Still, I really don’t understand. You can - and should - have proper rate limits on the API. You have API keys that uniquely identify the source, what is “the abuse” they are trying to prevent this way…?