I read the whole thing two sentences at a time in the tiny space under that damned popover.

Seems absurd but there is an invisible x in the upper right. I tapped it and the email popup disappeared.

FYI, any email-ish looking value works. E.g.: afdasdf@gfgs.com

Adblocker seem to do it on my side, not sure if ublock or pihole did it though.