When I played it (the very first available iteration) I felt like long rest = defeat (and if I find myself in a situation when I have to long rest I should just load a save and try better). Even one long rest, yes.

I think many players will feel similar if the game doesn't clearly (and early!) state through some wise character that you can explore the map however you want.
Or just I dunno make the entire party captured and just chill in a cellar for a couple of days so then you would have your initial "long rests" and understanding that you're not turning into a mindflayer.