I believe processing time shown here is for those applications who are applying for the first time (whether Category A or Category B).
In my case, OROWP is already issued last year and PR application is pending once 12 month Canadian work experience is achieved. Now after gaining 1 yr experience, I'll send docs proving my experience in Canada. It doesn't say anywhere how long will it take to get PR after we send docs via webform to prove my experience.