DC Editorial had it out for Wally enough that I don't think it would have mattered how much they tried to distinguish the two, since they were likely not going to give Wally his fair shot at this point, especially when they're so comfortable just making Barry more like Wally when it suits them.
I mean, the differences stand out enough to where I think it wouldn't be that hard to get it right on a consistent basis since it's colors + hair.