It is a solid achievement overall, and that is more understood within the military aviation community.
There is another Viper driver, non-Pakistani, he has made an entire career of flying Vipers with an impressive over 7000 hours in the F-16. He's currently flying Block 60s in the UAE and will possibly declare his hours after retirement.
1000,2000,3000.....7k+ these are all significant achievements. A lot of hours are taken into account just for an hour of a flight itself. 1-3 hours on average before each mission full of various topics and briefings.
So comparison with army and Navy tactical units of 1 year equivalency is not exactly an accurate assessment.