Are Spellcasting classes vs. mudane classes balanced?

[Chimaira]

Depends on the amount of time. 1 or 2 mins between rests would be fine. Some people have suggested 15 mins. I think thats too long. I think adding any mundane downtime to the game is a bad idea. Game is supposed to be non stop action and fun. Sitting around for 10-15 minutes is not fun.

If your in a party it would suck to have to wait for the cleric or mage to rest.

Thats not the biggest issue.
Higher level clerics and mages can go on for 15 mins of fighting easily, it passes by so fast, theres 1 problem which bioware should be shot for not fixing it. When someones leaves the party, wheter crashing, or whatever, your rest is cancelled, the same happens when someone joins the party. This is what makes resting restrictions silly to me. Its not the way to balance casters and fighters.

[Thanos]

I am a 15 level mage now and i can use my spells up in a minute on big fights. Why make low level mages wait 15 mins to get spells.

There is also the lag issue. How many time has rest been canceled by lag? Its happened to me all the time.