PR process(express entry) and PGWP are two different things. U can accumulate canadian experience using PGWP. U do not qualify for 600 points for a job offer unless u have an LMIA(gov approved) job offer so in that sense PGWP wont give u any points under express entry. Thats the sad story of us students we are all left behind by the express entry system. PR has gotten difficult for students.