Hrymr: But other, more complex questions remain: why do they hate them and more importantly - is such dislike really justified?
I've only skimmed through the thread, but I'm under the impression that this has been answered.
RPGs are about freedom of exploration. Exploration of the unknown (that is : not knowing in advance if you'll find something or not), and thorough exploration (discovering all the game's content). Time limits punish you for playing the game to its fullest extent.
Either it punishes you randomly, for having failed to go in the correct direction out of sheer luck. Or it punishes you for not having stuck to following the (main quest's) clues, for having strayed to discover the contents that the designers have meticulously added to the game while asking you to ignore them.
It's okay for short games that are meant to be re-run lots of times ("Minit" looks cool, and I've enjoyed the fighting fantasy books), but huge games let you accumulate too much time on your dead ends, you're unlikely to restart them again and again. And it's a double bind. Look at that, you have a big carefully crafted world to [please not!] discover.
RPGs are supposed to be the opposite of the little red riding hood forest paths of our everyday lives.