I just looked at the Yuri Crush tag description and this is what it says:
Tag › Yuri crush
Also known as Schoolgirl Crush
Soft feelings of amorous interest in another girl, as pure as a lily is white.
A feeling present mostly in young adolescents - often triggered by bear print panties, handsome women, or a case of mistaken identity.
For instances in which a non-yuri story features some form of yuri crush. Should not be used in any story with a yuri tag. When an entire story's narrative revolves around one-sided yuri love, use the yuri tag instead.
If Yuri Crush must not be used in any story already tagged as Yuri then somebody made a mistake when they tagged this oneshot.
Also, wth they mean by "triggered by bear print panties"??? Is it a reference to some yuri manga where something like this happens?