And just a couple miles away from each of those airports (even at lower elevations), there was measurable snow. Over multiple events, not just one. Airports aren't in the best locations for anything.

Nice. I remember PDX had some flight delays on 12/18/2005. 1.2" were measured there that day. Was that a major lowland snowstorm?

As has been stated, three of the main airport stations in SW BC (Victoria, Vancouver, and Abbotsford) missed out on measurable snow this winter. Those are facts.

I only had 0.8" at 471 feet

April 2022 was not a "major" lowland snowstorm outside of a very narrow strip of Clark County that got 6"+. In the context of the overall region that isn't too meaningful. Accumulations with that were generally in the 2-3" range in the lowlands areas. SEA measured 3" accumulation. Snow that falls and doesn't accumulate is not considered measurable. That's a nice event but in the context of lowland snowstorms, I don't think many would consider that major. There may have been a narrow strip under 400' to their south and east with more accumulation, but again, that's not too meaningful from a regional perspective.