There has been a push to ban it for some time, likely because our own federal government, aka Israel #2, has little say in controlling the algorithm.
However, I would like to take a look back, to the first push for a Tik Tok ban, and see just how many politicians were on board, on both sides of the aisle, and compare it to now, where the push is much stronger, from both sides of the isle.
Trump is very much in Israel's pocket, as much as the rest of them, and he also depends on public perception very much, just like the rest of them. It is in all of their interest to shut down a platform that recommends content that is against whatever they're selling (or whoever is buying them).
Regardless of the past, however, when you have prominent Jewish figures openly stating, very concerningly, "we have a Tik Tok problem", and then you get a massive, bipartisan effort to ban it, I would say that it walks like a duck.
I have no doubt you see the tiktok ban as a reaction to any pro-palestine stuff on the platform. You're biased.
When someone molds the facts to fit their opinion rather than molding their opinion to fit the facts, people see that. They recognize that person's position comes from emotion rather than logic.