Sure, and many studios will already have DSP amps and/or external processors (XTA or BSS probably) which do have limiters - even if they haven't previously been used.
My current setup just doesn't have anything in the monitor path with a limiter. Which I do appreciate is my problem, not Kali's. It's just that I've not come across a warranty that is invalidated specifically by lack of a limiter. Of course, while the wording may differ, but few manufacturers will actually swap drivers under warranty if they come back covered in soot with the coils melted out of them. So maybe in practice it's little more than semantics..?
Maybe I'll run my current setup for another year or two to realise some kind of ROI out of it, and then when I (eventually) transition everything over to Dante, as I do so, I'll keep these in mind and see if I can fit them in. And of course by then we might have some data on them, even if not NFS'd by Amir.