Leg spinners are itself a mystery because they have so many options. But, if Rashid starts to play regularly with top teams, I think they'll work out on his demystification - Warne survived after that for 2 decades because he had very little mystery, he did simple things so proficiently with absolute accuracy that batsmen knew what was coming, still hardly managed him. For example, everyone knew he had little Googly, rather he had couple of flipper/top-spinners; but he used to bowl his flippers a bit faster & a little short so that he gets batsmen on back-foot. I am sure every batsman had seen that flipper action thousands of times, still apart from Salim Malik & STD, and may be Lara, hardly anyone could manage that ball well, most of them would get LBW trying to pull.
I didn't see Rashid's big turning leggi, which should be the stock ball for every leg spinners. I actually haven't seen him much because he didn't play ODI against us after his debut series and I hardly rate spinners from T20s. I searched for his profile to see which batsmen/teams he had troubled and the result was shocking, a posted. Even those 3 games against BD, SRL & PAK are played on surface rare these days and 3 times, he was defending what has to be an above per score for the track. In ZIM, on a good wicket SCT chased 250 inside 40 overs against him.
Also, I have seen any batsman trying to distort his length, which is irritating for most leggis, as they need to change pace & length. Since, it comes from wrist, if a leggi is to alter his bowling plan during delivery stride, often they loose their tight control. This Abu Dhabi ground isn't the ground where you can step out and loft spinners for the distance of boundary & slowness of wicket, but once batsmen starts to charge at him, we'll have to wait to see his reaction.
I'll be waiting eagerly to see him in UK next year, where Warne won a WC in May-June, and Qadir had couple of 5fors in 1983 WC..
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I don't really see anything offensive about his behaviour.
