Others have already mentioned how Tor bandwidth/latency issues could make things substantially worse for 'real' Tor users outside of their simulation. But the

Others have already mentioned how Tor bandwidth/latency issues could make things substantially worse for 'real' Tor users outside of their simulation. But the bigger issue I would wonder about is Google's reputation systems. Google does not treat all CAPTCHA requests equally. An office full of CloudFlare employees peaceably going about their daily browsing is going to get a much easier CAPTCHA situation than a Tor IP containing a mix of automated nefarious activity and individuals peaceably browsing from infomatically repressed countries.