I think that Larian's long term plans for the "long rest system" is basically to not give a fuck and keep this half-assed abortion of a system we have currently.
Even if ...
Why not? If you dont have enough self-moderation to not use something that makes you mad, its kinda your fault.
And if you do, you dont have any isue with that option being able often than you use it. O_o
I dunno, personaly i keep engaging fights without spellslots, since i simply forgot to rest.
