Played CWG last night for the first time on my 39 Defense Guardian with a 40 Sent, 39 Gunslinger (I think? Smuggler subclass, uses two blasters), and a 44 Sage. The first bit was a bit difficult, one of my group members kept bugging out and another one didn't quite get how it worked. We wiped about three times before we got it, struggled with the droids leading to the puzzle part before the DPS remembered they could CC (lol), had minimal difficulty on the puzzle part, then went finished without wiping again.
OP, maybe you just need to run with people you know well or ones that have more than two brain cells to rub together?
Love and tombstones