Yup - we landed recently and you could not even see any proper line definition there were that many people. We had our son in our arms and had to hold him for over an hour whilst waiting to go through - we asked the captain if one of us could go through early (they usually do let people with children) - nope, we then asked if there was somewhere for me to sit with the baby whilst waiting to go through - nope. All in all utterly unhelpful welcome to Doha, embarrasing I should say for a country that is trying to encourage tourists