Even though these are private companies, they have become very much public utilities and as such, their influence is massive. Everybody should understand how dangerous they can be in the hands of extreme ideologs of any stripe.
Whatever you think of Musk, he is undeniably not in the business of censorship, but rather making sure that everyone gets to speak regardless of their political leanings.
The enforcing of the TOS on Twitter has been at best inconsistent and at worst clearly biased or even political suppression.
Cracking a window and letting some sunlight in can only be a good thing here, for anyone who has nothing to hide.