The AGPL only limits developers, not users. Users can do essentially anything they want with the software package they receive, so using AGPL software is no different for them than say MIT.
Why would an end user, which a company self-hosting something for their own use is, care about the license that applies to developers? And if their reason is that they might want modify the software to work better for them, 1) why would they not want to contribute that back and 2) I have some scary news for them about any other non-FOSS software they use (surely a lot).