I think a lot of it depends on how you word these survey questions, especially since nobody really knows much about Disney+ or what it offers. imagine these two questions
1. would you subscribe to Disney+ and cancel your Netflix subscription?
2. Would you want to watch The Mandalorian, a new Star Wars TV show, and new TV shows with Scarlet Witch, She Hulk, Loki, and Jeff Goldblum traveling the world if you had to cancel your Netflix sub to watch it?
I suspect you'd get vastly different results. Once D+ is out and people understand what shows they have, and how it lines up to Netflix (which has a much, much, much, much, much bigger catalog) then you'll really start to get $$ decisions made.