That's better. :P
A good point actually. It's quite obviously a weak bit of story they could'a done without, but they stuck to it anyways 'n justify it with this.
Thus, an imminent question: were they planning to handle some of these things in sequels/follow-ups/whatever? Vincent's story was so lacking in information in-game but obviously plot relevant, though not necessary.
Essentially the question is, "were some elements of certain characters (particularly Vincent and Zack) intentionally ambiguous?". I'm not sure how anyone would go 'bout gettin' an answer for that, though I would assume yes since there's such an insane amount of stuff pertainin' to FF7 that came forth after the game's release, notably Crisis Core and Dirge of Cerberus.
Not really. The Metal Gear Solid series had plenty of unanswered question that were finally wrapped up in MGS4. However, rather than making it feel like the game was incomplete, one never felt that the story elements were lacking. Same with Half Life, if Valve were to ever release Episode 3.
Ain't familiar with either examples, so ya've lost me.
Regardless, I'm still confident the lack of information for Vincent and Zack's background story outside of a sequel and prequel respectively, was intentional.