Thrask was the only one with any actual conspiracy against the Templar, and Samson was a part of that conspiracy. Alrik was breaking the law, but wasn't conspiring against the Templars. Only what Thrask did, could reasonably be cause for the Seekers to take any serious note. However that entire situation was dealt with before the Seekers could involve themselves.
A conspiracy against, or a conspiracy within. Either one undermines the Order's ability to operate effectively and within established Chantry law. That Alrik's cabal was able to operate for years leading to both Templar and mage casualties implies that the Order stationed a the Gallows is not adequately organized or disciplined. Thrask's rebellion and Templars killing each other over differing interpretations of conduct further prove that this is the case.
Of which only two are mages. Of which only one is under surveilance. It is ambigious wether or not the Templars had any knowledge about Merrill. Isabela, Varric, Fenris, Sebastian and Aveline are all unimportant to the Templars. Much less so to the Seekers.
The aforementioned one that is under surveillance is, again, a key player within the underground, and has managed to evade capture for years.
And the Champion's close ties to the captain of the city guard would certainly be a point of interest, especially if they are one of the suspects regarding the unrest in Kirkwall.
Uhm.. I think they know perfectly well that an Apostate killed the Templars in the Chantry... After all they READ Karl's letters and knew he was meeting with an Apostate there..
You mean Alrik and those working for him knew. The ambush at the Chantry was purposefully executed without Meredith's knowledge, along with the rite of Tranquility being used on Karl.
And I've pointed out several times by now, that it was indeed small-time. What Alrik did was not something of concern to the Seekers, UNLESS it was known to Meredith what Alrik did, and she still did nothing. In that case the Seekers would take action.
Yes, the situation can literally be acknowledged as the worst of any Circle in Thedas, but that's still small time as far as the Seekers are concerned. Anything that can compromise the Order's directive and guidelines becomes a concern for the Seekers, if it is not resolved by the Knight Commander for whatever reason.
Oh? Now you arrogantly presume to know what the Seekers know and didn't know? So not only do you have complete insight to their operational tactics and priorities, you also have complete insight into the database?
Yes, I presume to know the information they explicitly share with us in the game, specifically "We (incorrectly) assume that this faction is behind the unrest here" and "We don't actually know what made the Circle resist annulment"
Yeah.... They must have done such a terrible job, considering that the mages are willing to negotiate now... In reality it seems the Templars and Seekers have fought the mages to a point where both parties are willing to negotiate, which means that both sides have been doing good job fighting eachother.
Oh yes, it seems that both factions are very capable when it comes to wanton destruction, with the common people of Thedas paying the price. I bet the kingdoms are just clamoring to give them all medals.