Apple terminated Epics account for Epic criticizing Apple, not for anything Epic did with the account. That is a free speech violation, retaliating for unrelated speech is against the ideal of free speech.

USAs free speech laws mostly just bans governments from retaliating, but a more encompassing law would also ban corporations from doing so as well, there is no reason you should fear speaking up just because the corporation might retaliate and ruin your life. USA already has such anti retaliation laws for companies in some cases so there is nothing unreasonable about it.