no I think there are a few incorrect things there. I was not saying you can’t simply bond NE at the inverter - you can provided the mains terminals are floating relative to earth and/or dc negative. My point was simply that it didn’t matter which terminal you bonded, whichever one you bonded would become the N, the other one the L.
You say breakers won’t work without an NE bond but let’s be clear, an overload breaker will still work, it is just an RCD that won’t.
The other thing to bear in mind is that some devices such as the travelpower and some inverters have a centre tapped earth bond, such that each terminal has 115v on it, they are in antiphase so the total voltage between them is 230. But the centre tapped earth means that an RCD will still trip at its fault current of 30mA or whatever.
I can’t see why Renology said what they did, perhaps they are confused! Of course the NE bond has to occur before (inverter side of) the RCD for it to be effective. Or maybe their inverter’s output is somehow tie to earth or dc negative anyway, in which case an RCD will still work.
As to equipment which “could potentially kill” you (pun intended, presumably!), lots of things can do this. A kitchen knife, a bicycle, a narrowboat propellor etc etc etc. What one has to look at is the probability of this happening and in the case of a mains supply that is not protected by an effective RCD, I’d say it’s pretty low. I have lived in 4 houses in my life, plus a couple of rentals when I was a student. None had RCDs on the mains rings, and in my present house still doesn’t. Nobody died yet!