The Wolf Dragoons not only betrayed the clans, but also betrayed the specific WOLF clan.
The same Clan Wolf of Khan Kerlin Ward, who ordered the Dragoons to stay in the Inner Sphere and to help prepare it to oppose an eventual Clan invasion?
At the same time, they are mercenaries, which in itself is alien to the Clan culture.
Living the mercenary life for a few decades didn't stop Natasha Kerensky from being welcomed back to Clan Wolf during Operation REVIVAL.
Nor did being a former mercenary - one who had fought Alaric himself on numerous occasions - dent Anastasia Kerensky's career prospects once she became a part of Clan Wolf.
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I mentioned this in a different thread, but I would not be surprised to see the "Mandate of Kerensky" be up for reinterpretation, depending on how things go once the Wall around the Sol system is finally dropped.
I don't think it be much of a stretch to see the requirement to conquer Terra be re-framed as a requirement to both take
and hold it - at least from another Clan.
To put it like this: if the Capellans are the first to take a shot at Terra, that might be treated as a "Star League Defense Force" problem: it's not in the interest of the Council of Six Clans to see any of the House Lords succeed in that regard.
But on the other hand, despite what Alaric might think would happen, I could well see the Council deciding that a
de facto Trial of Refusal by Clan Hell's Horses at some point after the events of
Tamar Rising was a "Clan Wolf" problem. If the Wolves aren't strong enough to keep the Horses at bay, why should another Clan bail them out? Not least if a successful transfer of the "Mandate of Kerensky" happens to set a useful precedent should another Clan - say, the Ghost Bears - take a shot against the Horses in turn.