I take your point, and thanks for replying - however I do have a valid reason for wanting to hide SuperSU, in fact I have more than one reason, however the one I am most concerned with is that if the theif/finder doesn't know the phone is rooted, he/she will probably not take precautions to stop me tracking the phone, taking their picture etc. If you found/stole a phone, factory reset it for safety and then wanted to sell it on you would probably have a quick check to make sure it had indeed been wiped of identifiable data, and then off down the pub to raise some cash. If you noticed Super SU and it rang a bell you might then be inclined to go a little further to avoid detection - perhaps even smash it in a fit of pique.
Anyway, its all guesswork at that point, however what is the point of hiding the Avast, if you leave a visible pointer that something has been hidden?