It seems to me there are a LOT of Bitcoin "plebs" on iPhones, and Damus is the defacto Nostr client. I am all for free choice, though I see this choice as odd, honestly. Apple is about as anti-freedom as a company can get. Arguably it's success rests on choices they have made here. And it has far reaching tentacles. What you mention here is possibly one of them.
In the end this platform and bitcoin are going to force them to change. Yay. Hope your zaps go back up sir. I'll send one for good luck,