I have to agree with the pro-templar crowd here to some degree. The circles are actually a solid idea in theory. However all the Dragon Age media makes it competely clear that it in no way works like it's actually is supposed to do.
In practice if you aren't a noble mage, whose rich daddy will cause the templars trouble if you are mistreated, there is a high possibility of you being f*cked (and that disturbingly quite literally in some cases). Protecting the general public from the dangers of magic is well and good but the templars throughout the games and other media abuse their power again and again making it apparent that the current system is far from working as intended because there are way too much murderhappy abusive jerks in the templars ranks.
Just a short list:
Wynnes student almost get's killed after trying to flee.
The templars are ready to punish the Amell or Suarana Warden with tranquility or death for helping Jowan, even if you were just doing it explicitly on Irvings request.
They also once killed some random chasind woman just because she might be a witch of the wilds.
Cole states that beatings and rape were common in the white Spire.
Speaking of Cole the templars let the original one starve in the Dungeon and then coverd it up, and then had a demonic-Cole spirit killing more mages in the dungeons without ever doing anything about that. Great.
And then there is the whole awful hellhole that was the Gallows in Kirkwall which:
An extremist knight commader that absolutely hates mages and was was already a cruel tyrant before she started to go down the slippery slope towards complete paranoid, genocidal insanity due to lyrium induced madness.
Regular beatings for crimes as simple as speaking to a stranger in the courtyard.
A second in command with lovley opinions like: "Mages can not be treated like people."
Multiple rapists in the higher positions of the command structure, one of which isn't content with raping alone but also illegaly uses the rite of tranquility on his victims first.
Draconian punishments doled out for extremely minor offenses like writing letters to your girlfriend you had before joining the circle.
And then Meredith basiclly usurped the position of the Vicomte, blocked all attempts to vote a new one and established a brutal regime where her templar death squads were even harassing the normal people templars are supposedly meant to protect.
And to top it all off when a completely unafilliated third party blew up the chantry they decided to "LOL. Let's kill all the circle mages instead of the one apostate actually responisble."
Now be honest, does this soud like a boarding school you would be confortable to send your kids to?