What's wrong with tubi?

Everytime they talk about tubi, it seems they're talking about some garbage filth place like the manhole. What's wrong with it?

I'm not from murica, i use vpn and watch good movies on tubi all the time. From artsy fartsy european/asian films like only God forgives, old tv series i watched as a kid, animation like tom and jerry and ghost in the shell, to blockbuster movies like dune! And it's all free!

Many thanks to tubi!