There is a big difference between having a normal number of the newer pumps in stock for repairs and having a much larger number of the new pumps to replace all the older pumps. And, the current stock of the newer pumps is probably from earlier production runs and another production run (or runs) is needed to have enough for the recall replacements. Thus, a small number of new parts may be produced and made available each month. Furthermore, the pump supplier also needs to produce the pumps with the updated impeller for a much larger number of all the other Honda models which are subject to the recall. Perhaps the replacement pump will have an "A02" or other part number but, rememeber that the 2020 and 2021 Clarities are not subject to the recall with the A01 pump.
So, give Honda a break as I suspect they are doing the best they can and may be saving any newer pumps right now to replace pumps that fail (although one poster said that his dealer could not get a replacement).
So, give Honda a break as I suspect they are doing the best they can and may be saving any newer pumps right now to replace pumps that fail (although one poster said that his dealer could not get a replacement).