we made a custom daemon for the vlcradio, so no, all you have to do is run either installer. You can also control it from a mobile, see the REDME in the pHAT BEAT repo.
I'm checking the latest Volumio as we speak but I don't hold much hope to find a way around the interference encountered from using the UI.
I guess the only way would be to make a 'self-repair' process that runs at boot, so when it breaks it's just a matter of rebooting. In principle that is possible, but clearly not a great situation neither from the point of view of Volumio's intended experience and that of our products.
I'm a huge fa of Volumio though, everybody in the office is, so it's definitely an integration we want to see getting better over time!