That makes sense for Tormund, given his Free Folk lineage: Why start giving a damn about the monarchy now?
Hivju said Tormund and Beric more or less want “good to prevail,” which would probably mean anyone who isn’t The Night King or Cersei is good with them.
Tormund just likes to fight, which is made all the more evident when Kristofer Hivju added that his character isn’t concerned with who ends up on the Iron Throne.