Wow, I had this exact thought the other day. I loaded the page, and just sat there and watched this animation on the screen. "What is it doing" was all I could think. All I need it to do is load the subject line of the first however many emails in my inbox. It can't be that complicated.
To some degree, I do appreciate the fact that it was shut down just to illustrate the fact that all of these sites and services are not "real" and could disappear at any time. I think it is good that people at least keep this fact in the back of their minds, so a concrete example from time to time can be helpful.
Youtube's copyright claims system is absolutely abysmal. I didn't know that TikTok is owned by a Chinese company, so I assume that they are much more resistant to copyright trolls?
I'm about 70-30 on it being satire