I found the difficulty fine, just part of the character-swap gimmick they're experimenting.
Personally I dislike every single one of the MSQ duties that had us playing as one of the story characters. Specifically, I hated using those skills. Just give us a cut-scene of the fights, tell the story like you always do.
I had no difficulties doing "In from the cold" the first time so I just dislike it just for the same reason as any other "character-swap" duties, even though it technically was my own character.
I'm fine with seeing these duties once over the MSQ.
But I will aboslutely hate it if it becomes part of our daily/weekly grind. Please no. I leveled up my character in the jobs I chose because I like that combat. I didn't level them up to 90 just to have the game force me to use a complete set of differnet skills that was just 11111, 22222, 11111, 22222. Don't do it, devs. Please. Not even for 5 minutes a day. Keep that abomination clamped down inside the MSQs.