EPOs in IDFs?

Got a vendor who's insisting that electrical code REQUIRES us to put EPOs in every single IDF and MDF we're putting into a new facility we're building at work. Looking over the electrical code, from what I can see they're SUPPOSED to be for rooms with raised floors that have non-plenum cabling running under it, and it's completely optional and unnecessary in a room without a raised floor.

This is a new building in a hospital campus, where none of the other buildings (including ones completed in the last 3 years) have EPOs in their closets, and we're just starting to look at revamping closets in other buildings on the same campus. I, my boss, the Project Manager, and a couple of the other guys working on this think this is a contractor trying to pad the bill and install a bunch of stuff that simply isn't necessary.

Is this a recent change in electrical code? Does anyone else have EPOs in IDFs with concrete floors? We understand and fully get that our new MDF, which has a room-scale UPS, needs and should have an EPO, but one of the justifications for the IDFs is that we're using rack-mount UPSes larger than 750VA, which again we've been doing for years.

Just want to get a feel as to whether or not this is a normal practice other places - it hasn't been here, nor was it at my last job - or if we're looking at someone trying to scam us for more work.