I remember seeing that documentary a while back (maybe it was a different one though). I saw one where they tried to identify the 'falling man', but came up without a complete conclusion.

I could imagine it being unnerving to watch for some people, but I thought it was quite illuminating. You're right in that the people who (supposedly) jumped were essentially forgotten whenever 9/11 is mentioned or thought about.

Many people have great difficulty with the notion that someone chose the manner of their death, I find, and seem more relaxed with the thought that a persons life was taken from them without their consent.

It would seem to be human nature not to mention the 'worse' parts of life and death, but that doesn't stop making it exist.

Personally, given a choice between burning to death and jumping I would have opted for the latter.

Some families rejected the notion that the falling man was their family member simply because they did not want him to be disallowed from heaven as per their religion.

I don't think religion should have come into it for the families.

The people did not choose to kill themselves - they knew they were already dead especially those that were up too high and watched the first tower collapse.

Rather, it could have been that they simply chose to meet whatever Maker they believed in sooner than they would had they simply sat back and waited. Incidentally this would have caused a lot less pain to them (or so I would assume) than burning or suffocating to death.

Same outcome, different route.