Surely anyone would question their capabilities when they only defeat mages when they have every single advantage possible, better equipment, numbers, people's favor etc...
Do you think there ever was a general who deliberately crippled his army just to prove he had balls?
If the mages can't muster the same resources, that's their problem.
I mean what if they could perform a ritual to make the very land dry and heated and focus on Templar main base. We already know what Templars can do but magic has limitless potential.
No one would care because the Templars aren't farmer and if you tried to do that trick on the lands that provide for them, you'd also be attacking the source of food for whatever nation they are garrisoned in which means they'd also starve and everyone would turn against the mages.
Usually yes, but this was not a usual time. Which call to answer when there are literally hundreds of reports of need of reinforcement. Not to mention it takes a while for the messenger to get there.
There are, at most, two or three Circles in a country depending on its size. Where would these hundreds of reports come from?
Most of the Templars will be in the capital, protecting the Grand Cleric and people, able to respond to other parts of the nation if need be. And then there are those stationed in every town.
Even if the mages had soundly defeated the Templars, which isn't supported by Asunder as I previously proved, they barely managed to give them a bloody nose while their forces are entirely concentred in the Circles.
Actually I think Dasirimund circle was too isolated therefore it was the only circle that the Templars could stop the mages from rebelling.
That makes no sense. If we follow your logic that Templars can only win through reinforcements, then being isolated would give the mages the advantage.
Also, that Circle was named "Dairsmud" because it was house in the middle of the capital city of Rivain.
Altough, that didn't play a role. The letter clearly states the Seekers and Templars came from elsewhere (meaning no reinforcements) and that they started to win after summoning the Right of Annulment because that gave them free rein to kill absolutely everyone.
If anything, the mages were only winning because the Templars were handicapping themselves.