I second what Ti said. I can't even find the squishies stocking, forget buying them. I managed one so far this whole event. I don't think anything should stock at 1 at a time either, except maybe legendary items, but anything that's limited or can be asked for in quests should stock at a higher number (3 seems fair). That's neither here nor there for the majority of items right now, but it's very relevant to the crow items in particular, and maybe even the Valentines items. If it's a massive concern, turn on "buy one at a time only" for these items. I know it's been said that it's not possible to exclude specific items (other than by rarity or making them a container I believe) so can we set them to "special" rarity?
At this point, these items aren't bringing me joy or celebration, just frustration and annoyance, and I know they're doing the same to others.
I wasn't sure whether to post this in the event feedback or here, but since Ti posted here I wanted to boost this up. I might also echo it in my event thoughts when I post them.