I don't agree with every ruling in the ITC FAQ but I support the effort and am fine with using their rule set as a whole. Until the GW FAQ is official I will not use any of it. If the GW FAQ becomes official just as it is now, I expect ITC to over rule it in some cases...
For instance I don't agree that only one model may use a grenades in combat, however I can live with that because it doesn't affect that many units, and there are still other ways to hurt vehicles exc. I would not want ITC to over rule that even though I disagree.
The drop pod issue on the other hand, I would want ITC to over rule. We should ignore the doors because it makes things so much simpler in tournament games.