Yes, we agree.... I wish that all surveys, polls etc were unbiased or compromised in some way - elections anyone?? "Do your own research!"As was pointed out, it's biased information and utterly fails to support the point @CJaurelius was trying (and failing) to make. Look at the question posed by the poll:
"While I could buy Sigma and Tamron EF glass and adapt it to my Canon R system camera using Canons EF to RF adapter, I'm not willing to do this because:"
The very nature of the poll was intended to exclude those people who choose to use adapters, or use them with Canon EF glass. How is information on why people who don't want to use adapters with 3rd party EF-mount lenses feel that way relevant to the question of how many people use or don't use adapters? Rhetorical question, it's not.
I wish that the survey included Samyang EF lenses then I could have answered it.