You can claim UAE is not their home all you like, but it is best suited for team Pakistan over all the other countries. Even the crowd are mostly Pakistan supporters. I don't know what else is missing to call it home conditions
Not being at home in UAE is not a good accuse to loose from quality teams as we do, we really lack quality in all departments for sure.
At the same time UAE are not truly home conditions....
If you look at Pakistan we had far more diverse conditions than 2-3 grounds of UAE offers.
Difference in Climate and Conditions:
Pakistani fast bowlers generally thrive when you can pitch up, let the ball swing. Karachi is famous for evening breeze (sometime morning too) that's the time most of the magic happen. Karachi has being one of the favorite ground, Pakistan mostly win there, draws were rare in past. I think we have lost 2-3 tests at max in Karachi.
Northern Pakistan (Pindi, Peshawar, sometimes even Lahore) is famous for more colder climate in winter that's when bowlers become more dangerous, ball can swing more, some places lot more bounce. Sialkot is famous for green pitches and tests over in 3-4 days.
Since grounds in Pakistan are not so green and climate is such that soil deteriorate, it reverses almost every where. 4/5 days certainly would give you lot of turn.
Remember India Pakistan short series in Jan, all matches were low scoring, ball was swinging, you will not find that in UAE (any time of the year). If they had played in April/May, scores would have being 280+.
Where as in UAE grounds are lush green and wickets are such that they don't change much from day1 to day5. Wickets are slow and low, our fast bowler tend to bowl back of the length to survive, full length goes for plenty, since ball does not swing in pretty one dimensionally weather. They hardly bowl wicket taking lengths. Even spinners try to dry up runs to be effective. New bowlers when come from Pakistan and bowl in UAE they have to change their game to survive, they have to be defensive bowler (bowling defensive lengths) rather than attacking. Some times they get confused why they are not getting wickets, why ball is not swinging, why it is not reverse??
UAE conditions remind me of Multan and Faisalabad (in lower Punjab), almost like desert, very dry no rain. We mostly have draw matches played there, very boring not just to audience but to players as well, except batsmen who use to pent up their averages.
Why Batsmen Fail?
Now Why our batsmen fail so miserably in UAE? - Well part of the blame goes to PCB, if you have guys averaging in late 30s and low 40s playing consistently for national team and the ones who have average near 50 or above side line, what to expect.
Obession with bits and pieces all rounder is another. After Afridi/Razaq Pakistan has this false notion that allrounders are critical elements to team, even if none of the primary skills. This has led to decline of batting even more. Hafeez in last 4 years regularly opened or played at no 3, who is not even a batsmen. Pakistan Top 3 slots are wasted on bits and pieces cricketers. Now even in ODI you have two new balls, that requires even a proper openers, but we have not invested in them. Our top order gives in too early against quality opposition, put more pressure on middle order. You can only score big if somebody in top 3 makes 100, India will struggle as well, if that start to happen regularly.
Top 3 batsmen and bowlers are the most important investments. What PCB has done for that??
Other problem is some how our batsmen are not playing county cricket any more. Pakistanis in past has learned playing swing only after few county seasons. Younis was probably the last one to play any meaningful county cricket. That is also hurting the developed of top order batsman.
Looks like I am giving you excuses, excuses... Right now our cricket is at its bottom, it has cummulative effect of many issues, management, playing conditions, away from home, talent pool shrinking etc...