Ish,
The question isn’t whether one should barrel over someone. The question is whether, absent a specific policy by an airline making accomdations (such as that may exist with Continental), should people form a minyan standing up in the back of the plane even if it interferes with the normal operations of the flight. No one says you have to miss shmoneh esrei. The question is – is it better to daven in your seat?
And, I noticed, you still did not answer my question above. Is the situation I discribed above not a chillul HaShem?
The Wolf