(Think there's also a general prejudice against underarm play in professional sport as it's for kids who can't throw properly and feels like mockery. Underarm serves in tennis are frowned upon, even though an alert opponent has plenty of chance of scoring a point from them)
The equivalent would be bowling a ball rather than a strike in a baseball variant where each innings ended after a fixed number of balls regardless of the number of outs (which is effectively what One Day variants of cricket are). Specifically, walking the batsman when they needed to score a home run or at least a double. I think fans would get upset!
The sporting thing to do is to give the batsman a chance to score but to defeat him using skill. There is no skill in bowling and underarm ball, the batsmen is not being defeated by skill.
That said, never did I imagine that cricket would interest the HN audience.
Imagine that, in baseball, rolling the ball over the plate were considered a strike. If so, wouldn’t pitchers go for it if, at some time, all they need to do is prevent an home run (yes, I know that doesn’t happen in baseball) and wouldn’t it, subsequently, be banned?
We all saw this on the school yard as a kid and none of us appreciated it. It’s annoying to have to enshrine literally every situation into the rules. Just play the game as intended. This is part of what has made American football become less fun to watch (besides learning about CTE’s…). Soooo many rules, constantly stopping play to assess every little mm of the play. It’s boring as hell for all involved. It’s why you often hear “just let them play!”
At the highest levels of the sport, they know the rulebook like the back of their hand.