My nip-5 on the same btcpay server (except .onion) is not coming back valid so what are we talking about? 
https://i.nostr.build/JpuQfdioMYnQKs6k.jpg 

 I cannot access your server from here. That's why it's invalid. But Tor addresses work on Nip 05. 

 You win. 
https://media.tenor.com/pSv0EnoFWboAAAAC/benjammins-talking-to-a-wall.gif