I don't blame anyone for whatever decisions they make. But I will just add some of my opinion based on looking at Qatari society from personal experience.
With regards to the oil and gas business, do you know how many Pakistanis are working as engineers and other critical level jobs etc within their installations? I know some who they beg to stay on whenever they say they are going to leave and increase their salaries and packages. What does that tell me? That they do need competent Pakistanis and respect them for their profession but it seems to be relegated to individual Pakistanis and doesn't extrapolate in to a whole national thing like it does for Westerners. Why not?
I also know Pakistanis in Qatari Army! The Western friends are certainly providing security, but so are their eastern "brothers". If a non GCC army was to invade GCC, you can bet a million pounds that Pakistan would jump in, and rightly so may I add.
I do understand your points, I don't disagree with them. But surely, are Pakistanis that much of a liability?
Personally I like Qatar a lot, I think they are more inclined towards reform and are nudging along quietly and we as outsiders will always have our ways of looking at things. But the social hierarchy in that sense is pretty much spot on. You even get huge packages simply for having a British passport in comparison to non Brits. Not saying it's wrong, it's their country I guess, just an observation.
