Normally I think Canadian political pundits are idiots, but at the same time...I don't know, I could see Harper's hatred of the Trudeau name blinding him to any other considerations. His whole time as PM has been characterized by going out of his way to take swipes at the Liberals -- he even redesigned Government of Canada websites to make them blue and white instead of red and white! -- so it wouldn't be totally out of character for him to go down in flames because his hatred of Trudeau and the Liberals is that great.
I don't care where he's from. I'm a little leery of someone with so little judicial experience suddenly being on the SCC, but that's not necessarily the worst thing in the world (it's not like Nadon, who was disqualified for not meeting the SCC Act requirements). But someone who holds absurd, unworkable beliefs being appointed to the highest court in Canada...yeah, that's not great, and it's yet another sign of Harper actively trying to make government not work.