Fates literally do not scale.

[Reika]

I think you should re-word your post. They do in fact scale in level, but you are saying the monster density and difficulty does not scale. Thats kind of tricky since any number of players can enter or exit the FATE thus causing the FATE mobs to reduce/increase according to who is in it.

Its fine the way it is.

They really don't. The only ones I see scaling is the HP of the boss in boss fates, but the HP in mob zergs nor their numbers increase