1. you identified exactly what the problem is; EPL refs have been instructed to NOT use the sideline booth - that 100% sabotages how VAR is supposed to work
2. refs aren't going to the monitor every 2 minutes anywhere VAR is being used, unless you think EPL refs are completely incompetent and have zero confidence in their own judgment, in which case I'd agree
3. I wish people would stop saying "delays blah blah blah" - there are very, very few VAR reviews that require a sideline booth review, only the big ones. MOST VAR reviews are done & over with in under 30 seconds. And as for the big ones? You're talking maybe 1-2 every 3 or so games. The average VAR review takes 1:22. The average football game only has the ball in play for roughly 60 minutes, which means there are already 30 minutes of wasted, flow-stopping interruptions happening anyway
VAR literally works without issue in every other top flight. Why do EPL fans feel their league is so unique and special?