I know you are a brainless ***** with intelligence equivalent of a kg child. The so called rule is about stopping batsman from taking undue advantage, which Butler wasn't taking, secondly it's not about whether it was about rules vs spirit of game, instead Ashwin stopped and waited for a Butler to get out of his crease which isn't what the rule is designed for. So take your rulebook and stick it up your dung heap of a brain.
And in that case underarm bowling was within the rules during that Australia vs New Zealand series, and see how that turned out for Chappell brothers, so why don't you take your opinion to somewhere people actually care about it and don't bore is with your worthless take on the matter, cause by your logic majority of people who can see that how Ashwin tried to use the role for his advantage are 360 Lovers and bla bla bla.