I don't think they're abusing functionality at all. I don't think screenshotting a skeet should, by default, leak the follow state of the user taking the screenshot, which is what would happen without the secure input swap
"Secure inputs" take many forms, and it doesn't feel like this is abuse in any meaningful way
One person's "sensitive input" is another's "key information".
Follow state is a useful bit of information. There's argument to be made for both hiding and preserving it.