Yeah, god forbid something stops Musk from effectively dismantling the one tool that was allowing the working people all over the world (Iran, HK, Arab Spring, Occupy Wall Street) to coordinate and carry out demonstrations and protests against their governments and powerful capitalist oligarchs.
Not that I think future examples of these movements won't find another online space to exist. But Twitter was particularly suited for this task in that it provided real time global updates, same reason many found it an invaluable tool for getting live news.
And given the current situation of political awareness and working class coordination, this gravitation will likely happen over a long time and may even splinter to different spaces, which I don't think is a good situation.