Parler had deleted several of Wood's posts, and a number of users had used the "report" function to raise the flag to Parler management. I think he was close to being banned.
That particular post was still up when the site went down, I believe. I mean, sure, it's possible they would have gotten better. But this wasn't an abstract issue, we'd just had an attack on congress and there was (and remains) serious worry that something similar or worse would happen at the inauguration. Certainly the rhetoric on the site had not significantly moderated in the few days between the capitol riot and their ban.