[kzrdude]

That does sound kind of like a missed opportunity. Not sure why it's not like that.

The closest neovim equivalent I can think of is :term <command>

[kps]

`:term` is much more intrusive; you can't just `:!foo` and get on with what you're doing. For one thing, you can't `:term foo` with a modified file, which is not an unusual state when you're editing.

[kzrdude]

Using `:!` as a filter for text and running interactive commands doesn't overlap for me, so I haven't seen that as an issue.