So what if they change the criteria for April or May. You still need an impact to warrant a headline of any type, and there is nothing noteworthy with regards to travel impacts with this storm. Using the “varied criteria” logic, we would need a “rain advisory” for the spring to alert people of the impact of non-frozen precipitation...
I’m not saying that snow in late April, especially at that latitude, isn’t noteworthy; but to say some slop that accumulates on nothing but grass need an advisory is a bit of a stretch.