The banning process is unfortunately a slow one. OHKO moves and Moody proved themselves to be uncompetitive in earlier gens, but that move combination hasn't really been getting much attention until the creation of Klekei. Also, complex bans are heavily frowned upon, and this is a difficult one to make simple. I'd vote for banning confusion because it's uncompetitive, but that is controversial because of how easy it is to cure confusion.Why are strategies such as one-hit KO and Moody banned, but Swagger + Thunder Wave + Substitute + Foul Play is not?
I think Swagger/T-Wave/Sub/FoulPlay will be looked at eventually, but until then, we just have to put up with it and not complain. After all, there is no guarantees if it'll be banned or not.