My experience of UK visa is totally different. First time I got 6 months multiple visit visa. Submitted all docs. They didn't call for interview. Returned passport with visa stamped. Second time also same.
Third time I applied 5 year multiple visa and got it without interview again. Person at Gerrys delivery counter said "Sir, this is very strange? I've never seen a 5 year UK VISIT in Pakistani passport. You must be a special person" 
The only bad part was fee paid. Around Rs. 78,000.