"After completing the audit, we are highly confident in this release, and we have recommended that the witnesses upgrade their nodes in preparation for the planned switchover tomorrow."
The context of that post was a prior chain halt. It wasn't an announcement that HF20 should be approved. It was an announcement that the chain halt won't result in a delay.
"We will be fully staffed and prepared to deal with any problems that may arise. We are making this recommendation because we have the utmost confidence in the safety of the code and we believe that sticking to the scheduled time will minimize wallet downtime on exchanges. As of now, a super-majority of the top 20 Steem witnesses is running version 0.20.2 of steemd which means that, if nothing changes, the hardfork will occur tomorrow, September 25, 2018 at 15:00:00 UTC."
It's possible I continue to misread this, but my interpretation stands after reading it again that Steemit was suggesting witnesses make the change and stay on schedule for the Hardfork on the 25th. The bolded section and the timing suggest to me Steemit was inviting Witnesses to be on HF20.2 to hit the deadline.
I understand the distinction that the argument could be "if you like HF20 don't let this delay you," but I don't find any of that nuance in the post.