Right, but if everyone serving porn did that (e.g., google image search, so I guess all of Google should ban Utah), then people would just send money out of state for vpn access, and probably remember the annoyance when it was time to vote.
It's a fun place to visit!
There are more recent studies that rank Utah in the bottom 10. [5]
[1] Edelman, Benjamin. "Red Light States: Who Buys Online Adult Entertainment?" Journal of Economic Perspectives 23, no. 1 (Winter 2009): 209–220.
[2] http://www.benedelman.org/publications/redlightstates.pdf
[3] https://www.cnbc.com/2009/07/14/Top-US-States-For-Online-Por...
[4] https://www.ksl.com/article/news/utah/utah-not-necessarily-n...
[5] https://www.yahoo.com/news/narrative-utah-leads-nation-porno...