I am gonna give you a couple answers for that based on what I have read in other places such as Reddit, perhaps OP does not agree with them.

1. RD or debrid services in general are paid services and it goes against their piracy beliefs (This is the silliest thing I could ever read… It only makes sense if you don’t care for quality and/or you haven’t tried a debrid service in your life).

2. Streaming torrents even paired with debrid services or VPNs (not needed when using a debrid service, or in some countries for bare torrenting) is more cumbersome than just using a website (even in this day and age when Stremio exists), which I kinda agree with them… But you get what you pay for… Am I right?

3. They just don’t have a clue of what a debrid service is.