Says you'll ban spam. Unwanted commercial solicitation is free speech.
Says you'll ban incitement to violence and harassment. That is also free speech.
All that "free speech" means is that the government can't take a priori action to prevent it from happening. But there can be consequences.
All the popular platforms are free in that sense already. You will just have a boundary somewhere else for what you consider worthy of consequences.
Which is fine. I don't actually believe anyone enjoys a completely unpoliced platform. But maybe don't be so quick in saying you'll give a voice to the deplatformed, when you're a platform yourself and will ban people too for not adhering to your own speech police.
Even if you hate FIRE for defending the civil rights of people you hate, the article is succinct and contains links to the ca ten most relevant high level court cases.