# Yes, which is fine

Monster vs Character rules are asymmetrical. This has always been the case. Monsters typically can do many more things than characters, however this particular asymmetry seems to favor characters. Your "dissatisfaction" has no bearing on that. 

Most monsters don't have to budget resources because they have short lives. Characters, on the other hand, have to budget through an adventuring day. So, this asymmetry may be appropriate and will almost never matter.

If a GM wants to ensure parity on this niche issue for some reason (e.g. a recurring antagonist), they can create  Hostile characters using standard character creation options, whom use spell slots.