I completely agree. The community have been supporting Relic for years via DLC purchases and especially skin purchases. Not to mention providing and improving maps for them. Which frankly is a major part of the game and something you'd usually expect the actual company to do themselves (it was especially insulting when they released them with known bugs that hadn't been removed when added to the game).
I know the '5 year plan' wasn't exactly a contract, but it still feels a bit insulting and short sighted to stop now. When we have a decent patch virtually ready to be added.
It wouldn't make the game perfect, but it would improve a lot of units, and most importantly make 4vs4 less of a blobfest due to changes to FHQs.
It would have been great (and shown respect to the community) if when making their announcement, they had confirmed if they will be producing any more patches for the game. If not then this is a really grim way to end support for the game, and one they will probably become infamous for.
Yeah it does seem that relic/sega is spitting in our faces hard. Oh well, not much more could be expected from them honestly.