I see where you are coming from but the argument would be stronger is Google Chrome refused to open illegal streaming sites etc. AFAIK, there's no such restriction.

(I dont agree to this but ...) using your argument of " If you use a X as your eyes to see what exists “on the internet” .. " - we should all be mad at Apple. I use iPhone as the primary device to access apps, and they not just hides but actively ban and cut whole swathes of developers.

If I ask Siri to give me a link to illegal streaming site and if it refuses, is that cause for concern? I'd say no. Infact, I dont expect it to give me that and I get it. Same for Google Search in my humble opinion.