"I think the more reclusive location wouldn't be a bad idea. Lightsabers attract attention, and we have enough to worry about without..." Skyhold's population could be broken down in any number of statistically interesting ways, but the venn diagram describing the coincidence of nosy parkers and residents of Skyhold, was a circle, "...a convenient audience."

He's in enough trouble with Cassandra and the rest, without that to add to it.