This is not "insider info" but it's probably just because they don't want to take the risk of releasing an update which may then break a bunch of stuff and create new bugs which need fixing (using up Relic staff time.) The March patch broke Ardennes Assault and created some new bugs which then needed another patch to fix.
Working under Microsoft, they probably can't spare the staff if that was to happen. Though, the timing of it is kinda strange. 1-2 days immediately after the AOE4 announcement. You'd think for PR sake they would have bailed on the FBP some time ago, especially before the announcement.
As someone else pointed out, 4 years is a pretty good time to have been supporting Coh2 but it's frustrating pulling the plug on something (the FBP) with so much work put into it and great changes, when Coh2 is close to being in a much better state. It's also frustrating that our mod tools are so limited, so we can't do as much cool things like the guys over at Dawn of War 2 Elite.
The 1v1 scene will rapidly die I suspect, but 4v4's will live on for quite some time. I wish we at least got a really solid patch or two aimed at improving the larger team games.
over all is RELIC's fault.
But I realy do like they buffed jackson.
Is a shame they pull it out.