It's annoying. They can't use these pop-ups for things that actually matter, e.g. disabling an exotic, announcing the wish-ender nerf, etc. But when Eververse is concerned, oh boy can they shove it in your face.
Why should they have to announce Wish Ender is getting [b]a bugfix[/b] in an in-game message?
The same thing could be said for announcing ever eververse gear.