Criticism of SBW is not just based on that performance. Given what he is (was?) capable of and what he's producing on the pitch he is well below his best. His lack of pace can be fairly easily exploited on defense as well.
He's not a disaster, but I think he's lucky to be starting. Right now I'd prefer either ALB-Goodhue or Crotty-Goodhue.
SBW should not be a lock for RWC19. Am hoping he has an injury free Super season to show he still has what it takes.
Totally agree with the second half of your post. The problem is that plenty HAVE been using this game as definitive proof he is past it and should be dumped completely.
The only thing this game reinforces is that he injury prone which is by far his biggest issue.
He is injured so often it is impossible to string enough consecutive minutes together to even assess his form.