Part of an interesting article by Alexander Wolf in FluentRugby.

"O’Sullivan analysed a match between Munster and Saracens. There were a total of 17 scrums. On Munster’s put in the average scrum time was 74 seconds while on Saracens’ put in the average scrum time was 55 seconds. This took the total of match time dedicated to scrums to a whopping 20mins.
The Munster and Saracens game wasn’t some crazy outlier. Munster averages 15 scrums a game. And during Ireland’s campaign in the 2019 Six Nations the national side averaged almost 13 scrums a match............"

"............The referee’s clock is usually kept running during a rugby union match and only stops because of injuries or when waiting for the video referee’s decision. This may annoy some fans as lots of time is lost at lineouts and scrums but they fail to realise that if the referee stopped the clock for every scrum and lineout the game could easily last for 3 hours, exhausting both player and spectator."

As is plain to see, the Rugby Union fans are being cheated big time because their games are basically around less than half the length that they should be.