then u might as well say bowler cant change angle of his run up or he cant change the way he holds the ball mid run up etc.
end of day i cant see a problem with it and he should be allowed to do it.
It's an interesting one with regard to field setting. With three fielders on the leg side and the remainder on the off, if the bowler is bowling to his field, swapping to left handed means that you have 3 offside fielders but crucially the ball will be coming on to your leg side where all the fielders are.
The question is, if the bowler bowls to the field, does he get called for a wide if the ball goes too far down leg in the switched position? And can the batsman gain with having 5 fielders on the leg side now, especially if it is speared in on the leg stump? Additionally, as the batsman has switched, if you pitch it outside the (original) off stump and hit the pads in front of the stumps, is there a possibility of LBW? Or do you need to bowl a different line to allow for that?
This is why the bowler gets very annoyed.
I don't think there is anything wrong with switching in delivery stride/post delivery, however during the run up is more of an issue. It doesn't change the fact that Dilshan should have stopped if he thought it was unfair.
The MCC interpretation that was just read out on TMS is that "switching in delivery stride/post delivery" is fine, or the batsman must be set before the bowler starts his run up, but during the run up is not allowed.