VMware vCenter 7.0.3 always shows mobile UI

Unfortunately it seems VMware has changed something in the latest version of vCenter and made itself incompatible with Epiphany. I've reported it to them, but unfortunately I doubt they'll give it a high priority given Epiphany's market share. So some compatibility adjustment is likely needed in Epiphany. :/

The issue seems to be that they trigger a mobile mode (which is broken with desktop browsers). I can see the same broken UI in Firefox if I tell it to pretend to be a mobile browser.

Unfortunately I don't see any settings on this theme in Epiphany. Is there anything I can fiddle with to try and get rid of whatever tiggers VMware's mobile UI?