I actually support redecos/retools because I think it pays Hasbro's bills since it's the moulds that are extremely expensive and toy makers recoup their costs by reusing them (and without them we wouldn't have Skywarp or Thundercracker). But changing the left hand of Scourge and calling him Sweep... well, perhaps they could have just made heaps of Scourge and let the fans call #2 and #3 Sweep or given him some extra accessory (like a changeable hand) so he could be Scourge or Sweep. People bought 3 Siege Refraktors afterall, and you could remove the shutter to make the other 2. So instead of making Sweep, they could have used the slot for another character. But these decisions are made by bean counters and Sweep is one of the easiest reuses of an existing toy in the history of Transformer toys.