When considering balance with regards to implementing 5E rules, I think Larian needs to keep the following in mind when designing encounters:
In 5E the default resting is: Long rest can only benefit characters once every 24 hours per the SRD for 5E, and a short rest has no such limitations, but is by default about an hour long (although spells and many houserules shorten this).
For encounter balancing, the default assumption is about 2 short rests to each long rest (although I have been in tabletop games where significantly more short rests are taken, sometimes after each encounter).
This should be considered when balancing encounters. But as it stands now, in BG3 short rest and long rest are functionally reversed, with the short rest being much more limiting than simply returning to camp for a long one at any time. I am finding I basically am not using short rest at all in the current build, just long resting after each encounter because there is no reason not to, and short rest is too limited in its availability and use.
