They are incompetent honestly. If you were to discontinue this page you would at least talk to a few power users of the page and know their mind before taking the decion. They either didn't do it or did it. If they did it but backtrack now it show they don't have much confidence in their decisions, and if they didn't it, what are their pm payed for? That is pm 101
Do you have to insult them? People make mistakes all the time, taking decisions is hard. It's clear they didn't expect removing this page to be a big deal.
The fact they acknowledged the issue makes them the opposite of incompetent IMO (inincompetent!)