Thing is, we have no idea how this will evolve.

Maybe a zap-less Damus will exist for a while, getting more users along the way. And later somehow zaps are restored and get exposed to many more users. Or people learn about Nostr through Damus and move to something else to be able to zap.

(This has happened in the past: Bitcoin apps were banned and then allowed again.)

Nostr is by far the most effective tool to orange pill the normies. It's important to grab as much mindshare as possible.