It's an interesting theory but there are many exceptions, Like the type 055 destroyer for instance so probably not it
Navy ships are not part of this at all. They have different conventions based on propulsion as far as I have read in the past.
I think this year of service/introduction naming scheme applies to Army and Air force only.
More examples will be:
ZBL-08 armored vehicles, in service from 2008
PCL-09 howitzer - in service from 2009
PHL-03 - first introduced in 2003
Type 19 uniform - first in service in 2019
Type 21 uniform - improved from type 19 into 2021
Type 07 uniform - introduced in 2007
QTS-11 rifle - first produced in 2011
QBZ 95, 191 have already mentioned before
QBU-202-service in 2020
You can pretty much go through the list of PLA equipment and see this pattern.
BTW, Russia has the same naming Sceme:
AK-47, AK-74 all the way to AK-12, AK-15. It used year of service as the naming scheme. Same thing with Tanks. T-55, T-72, T-80. T-90. T-14 the list follows exactly as the year of introduction. But they are not as consistent as the PLA in using this everywhere. PLA pretty much uses it most places.