What prejudice? Have you ever been to T2?
There's Emirates, QR and PK (wiki says there's also SQ, but I've never seen them there), some oddball Virgin flights, maybe a Last Resort 757 charter in the summer, and everything else is a 737/320 if not a regional jet.
The sheer amount of people on the EK/QR/PK flights plus the VFR-heavy nature that means people are travelling in large family groups and/or with babies/children mean that, prior to the departure of these flights, the normally peaceful and pleasant terminal becomes a bit of a scrum. Unless you've got IRIS, returning behind these flights is even worse. This presents a problem for the airport authorities, but the tiny amount of widebody flights doesn't really justify the substantial extra investment required to get rid of the bottlenecks (though I have read that some expansion is planned).

Would you rather be stuck at the end of the queue behind the passengers of a KLM/Adria Airways F70 or a PIA/Emirates/Qatar 777?