You might look into international politics to see why some products might not be available/profitable. First, there seems to be this major land war going on nearby, (583 miles from uhersky Brod to Kiev), which has many of the European powers looking a little closer to home when it comes to weapons production. I would be quite surprised if CZ-UB hasn't diverted a LOT of production capacity to BREN 2 and P-10 firearms for use either local or diverted to Ukraine. ]
Note - this post does NOT open the floor for debate on the war, merely pointing out what is most likely taking place.
Throw in the fact that Trudeau in Canada, where Colt Canada is located, has recently made a LOT of waves with freezing production/importation of handguns and semi auto rifles, etc., which means that CZ must wonder if they bought a pig in a poke with the likely huge financial loss with Colt Canaga trying to stumble along with only military/law enforcement sales.
Then, come home to the US, where the current Administration continuously talks "assault weapon bans", "high, (?), capacity magazine bans" and other rot, and states enact laws to hold firearms manufacturers guilty of criminal misuse of lawfully sold products. Throw in that CZ had money sunk into the startup factory in Little Rock that will likely never be finished with the acquisition of Colt, and you have a very interesting financial and political landscape to navigate.
I don't doubt the influence of all these factors is what has CZ/Colt reducing production of some models, not sinking money in uncertain R&D, and perhaps just trying to catch a breath before the next idiocy. I have a strong feeling that might be the reason the BREN 2 BR has been more or less permanently shelved for US production.
So, just to be fair, I'd say wait until Jan or Feb 2023 to point the fingers at CZ, and see what might be happening.