Funny - I always think of the legendary hidden messages that are supposed to lurk in pop songs if they are played backwards. Surely spelling Heaven backwards would give a message the reverse of its forward meaning?
Not that this matters, of course. If you like it, carry right on. I know a boy named Navarre, which sounds pretty much the same but is geographical; nobody minds or gets confused. Clearly it was his mother's choice, and he could change it if he ever wanted to.
I hope you enjoyed your rant, though I don't know why you expected us to benefit from your calm, mature wisdom if we are what you believe us to be.