Look, I don't thing Winehouse was that bad, just not that great. I don't see her having the musical influence of any of the people I mentioned as geniuses. False adulation is as disrespectful of the dead (if "disrespect" is any sort of genuine issue) as false denigration.

She was middle of the road, musically. Except when she was trashed on stage and then she was dreadful. I remember seeing her once on late night TV - might have been Jools Holland - totally out of her box, out of tune and out of time and slurring her words badly, but I have not seen that clip on youtube.

Her worshippers seem to adulate some notable technical ability, or academic knowledge that she might have had. Those are not what make a great musician. They are tools that may assist.