"Catcher jumps on top of her to prevent her from getting to plate trying to pin her down " .... that could be malicious contact too ... eject them both?
definitely not an infield fly as it could not be caught with ordinary effort.
" If the umpire called Infield fly immediately the Runners would have stayed on the base. " - I've called 20+ yrs and have rarely, if ever, seen the baserunners hear the IFF call and react accordingly.
or in this case --> on a bunt attempt if the batter attempts the bunt and the ball goes straight down and immediately bounces up and hits the bat --> foul ball
If in the umpire's judgment the 2B had a chance to make an out on the play, then he could have INT. If in the umpire's judgment the 2B had no chance to make an out on the play, then play on ............
A batter that is walked can indeed round first, stop, then return to 1st base when the P has the ball in the circle.
At this point she is like any other baserunner - they can all stop once in between bases when the P has the ball in the circle, but after stopping they must "immediately" proceed...
the ump can't and shouldn't "position a player" ... players can play where ever they chose ... however, and of course, the ump should administer all rules correctly ... thats his/her job and thats what they are paid for ... not coaching
The rule has the "with ordinary effort" piece ... you can't (shouldn't) just ignore that.
The little popup that lands between 3 players is the perfect example.
"If ball goes up I think it should be called." - definitely disagree with that ... that's the lazy way out IMO.