It reads like those guys were talking about change in snow depth, not necessarily SWE.
Went from 9-12” around the lower elevations from here to your area on 12/15 and ended at 2-4” on 12/20.
The mountain elevations at 1500+ did see a snow depth decrease but added water and then rebuilt the depth back up rapidly.
Our High Road stake dropped into the upper 40s for depth (lost a good foot during that pre-Xmas rainer) but rebounded stronger back up to low 60s again with more water than before.
I agree that the snowpack is stronger coming out of these events, including what looks to happen over the next few days. The more frozen water locked up in there, the more energy it takes to melt it. Even if the gains wash out in terms of depth, the snowpack is more stout.