Maybe they are scaling down production of some models to boost the supply of others, like the P-01 Omega which I assume is more desirable. I doubt they'd discontinue the P-01 completely, since it's service in the Czech Republic and has that oh so coveted NSN number.
Also noticed the RAMI BD being missing, which kind of goes against the theory, I'm pretty sure more people prefer the BD over the B model for that gun.