
In eye of the beholder pits were tools of the demon.. you avoided them because you KNEW what it would do, it would plunge you straight down to the next level... no convenient ways to get back a few tiles from your fall location... if you didn't know the level by heart you just screwed your natural progression and were in strange surroundings batling your way to what you hope would eventually be a stairs back up... (and those stairs won't conveniently place you close to your pit entry point... it will put you straight at the "end" of the previous level)..
And the awesome devs at (rip) westwood knew exactly what they were doing... who remembers falling into a pit in level 3 only to be plunged down into the depths of the respawning spider hell of level 4 ? If you didn't have the Clue book back then with maps (no internet then sorry youngh ones).. you were in for a NIGHTMARE of an experience.. mazelike environment, spiders everywhere, it had a top to bottom loop so you could go on "north" forever (well at least untill you figured out why you keep encountering the same hallways), it had respawing webs and spiders, you didn't encounter any cure potion pots yet so spiders who bit you would slowly start posioning your whole party and it became a race against time not only to get out of there, but to then find some cure potion pots as well (to be fair, there were some cure potion pots inside this locked off place but they were hard to find ... it had invisible walls.. it had wall tiles becoming pathways if you activated pressure plates nowhere close to where the wall will dissapear just to confuse the heck out of you... and to top it off, the only 4 doors out where locked requiring you to find a key before being able to thumble out of this hellhole.... BUT and this is a big but, when you did make it out, finally able to close that damned door behind you and rest you felt like on TOP OF THE WORLD... (IF you made it out, plenty of parties perished)
The pits to this part of level 4 were most likely the most harsh pits in the game but nevertheless with some rare exceptions, pits always were inconvenient, and an ADVENTURE if you (on purpose or not) dropped into one... for a reminder this is level 4: (the place you dropped into was the whole right side of the level locked off by 4 doors)

Now compare this to the Grimrock pits who are in comparisson very very VERY tame... providing easy convenient locations that in 95% of the times are isolated patches who technically are on the next level but other then that.. have nothing to actually do with that level... It's obviously done to cut out "frustration" and make sure players don't get "lost" to much... but I'd hope that if there is a expansion pack or a Grimrock 2 that the almost equally awesome devs at Almost Human allow for some harsher pits and make them less of a loothole
