Agreed on the goalkeeper off the line thing.
Can't get much more objective than that in law (and requires far less VAR 'scrutiny' if you like than offside) yet that is left to the on field officials?
Whether or not you're for VAR that inconsistency not justifiable.
Is it? There were several penalties retaken in the WWC after encroachment by keepers on the advice of VAR. PGMOL may well do it differently, only time will tell as I don't think we've seen any encorachment yet this season.