Lots of Saudis still pass through Risalpur and Kakul. If they lack basic skills some of the fault is ours. From what I hear Saudi Armed forces are becoming more professional and long gone are the days when it was only Princes flying F-15Cs.
Number of Saudi cadets at Kakul around 50-60 every year.
In fact if you look at every Pakistani staff college intake you will see that of the 40 Foreign officers going through Pak Staff College every year (Major/Lt Col rank), almost half are from Saudi Arabia.
https://cscquetta.gov.pk/Hist_alumni.php?start=0&ctry=&sc=2014/15
Considering their entire armed forces are only 120,000 strong (and only 5,000 of these will be officers), that indicates that at a substantial amount, of all Saudi Officers cadets and mid level officers receive training in Pakistan.
Reason for this is 3 fold.
1) More and more middle class Saudis now occupying officers slots, often bright and with technical education. As mentioned, many trained to Pakistani standards
2) The abundance of advanced weaponry means Pilots/Soldiers must have at least a minimum skill set to operate
3) Even though they suffered casualties in Yemen they learned valuable lessons both on the ground and in the air. Pakistan has also shared many of it's lessons and still conducts large scale exercises with Saudi Air and Ground forces. Pak Mil and Saudi relationship is extremely close, I would say military to military closer then any relationship either country has with any other country.