For this one, I think 2 spinners won't have matter much on this track - may be economy would have been better. It was always time vs PAK bowlers on this wicket and they should have got with 5, at least 4.5 bowlers. It might happen that this Test will cost Yasir as well. Arthur should have known that in UAE they don't put live grass, rather put cut grass & roll it in the surface - it's the worst tactics to kill a wicket as that straw binds the top surface & it gets lower & slower.
If there was any Indian in the process, he would have at least forced - if not grass, then stop watering for 2 days so that it breaks from day 2. This wicket will turn, but slow enough for batsmen to adjust their shots. Worst type of wicket for any cricket - even T20 would have produced 134/4 type score - nothing for bowlers, batsmen or fielders.