Yeah, but these things were never fixed, by official patches or fan patches. I've recently completed Fallout 3 clocking in at 105 hours and I didn't run into any quest stopping glitches, unlike Fallout 1 in which I've been experiencing one after the other.
Fallout has its share of odd conversations and some cheap stuff. Speaking to the Skulz ganger who immediately attacks you for simply talking to him, then having the quest remain to 'deal with the Skulz gang'. It amazes me how much people speak of a lack of C&C in F3 but don't seem to remember some of the lack of it in the originals.
the whole glitch matters seem pretty random to me.
I seriously don't remember having major problems with fallout 1 & 2, except those that were caused by censorship (i.e. the quest in modoc with the missing boy - I could never finish the quest because there were no children at all, etc..). but probably I just missed most of the glitches because I've been too deep into the game..
all in all it's futile to argue about the glitches, imo. you'd think after over 25 years of gaming history there shouldn't be any glitches in any game at all. but they are still there. and as long developers don't care about their responsibility for result, they will always be.