Yeah I usually play bet builders, I would say even for the PL which has a much lower card count than basically anywhere else in Europe, it's still a pretty huge price. Marriner's doing the early game but then it's Tierney and Oliver so it's not the worst refs either. It's highly unlikely based on the PL this season (I think about 20% of games see 2 each as opposed to 50% in Spain and Italy) but certainly worth a quid or two.
When crowds were still a thing (and card counts were a touch higher) @Ben used to play this bet on a 4-game PL Sunday quite a lot and it used to typically be about 80-100/1 for the 4 fold.