I think, during the off day, they have watered the wicket & rolled it hard; therefore scores have improved, but still it's a batting first wicket.
PAK cricket never fails to surprise me - normally, when you play a tournament in single venue, gradually, the wicket deteriorate for repetitive uses, which was the case at Sharjah or Toronto; but here the wickets seemed to improve magically after 7 horrible matches.
May be someone in PCB "Ranks" has read the reviews at PP & made a phone call to Aga Zahid - he might have attended his office there after, 1st time in 2016................