I think the issue here is consistency from refs.
Salah, Lovren yesterday, and now JWP today - all soft penalty shouts, but only 1 of those was denied. Hmmm.
Personally, I think Salah & JWP were penalties, Lovren was a blatant dive.
Could argue til the cows come home. I don't think it'll change anything - 'top 6' will always be favoured in the long run.