DM's being kind and chucking non-combat stuff at you at 1st level, rather than combat which could kill you. Too bad it didn't work out - some of the more interesting (if frustrating!) sessions I've played in have involved shifting walls and passages...and-or teleporters, and-or miniature gravity wells such that a seemingly-endless flat corridor is in fact the outside of a cylinder that you're going round and round...that sort of thing.
Yeah just a style thing. I've run puzzles before but don't usually make them to complex.
If people can't figure them out they just kinda give up and it's what happened here.
Had one combat but he rolled the Orc hit points and they had 17-22 hp.
3 orcs tanked us. Had already taken one short rest by then due to traps etc.
So one person didn't like puzzles, 2 indifferent and I was wrecked do to late night gaming session and if I no showed it's a 2-1 no show.