I suspect they've already hit 22 in Q1 -- that announcement says 22 is the Q1 launch target.

My guess is that it's the MQA launch. See here, for example.

Control:10 (died) | Ensemble #1 (died) | Ensemble #2 (zones: 4 analog, 1 digital) | Intel NUC running ROCK | DSP3100 | F80 | migrating to Roon with multiple 218 Zone Controllers