I'm not bothered by the infrared costume, I think it looks cool. However, I really think it should have gone to someone else. Scorpion can stop being the Victoria's Secret model and have, let's say, some of the newer characters get some costume love.
And before anyone says it, yes I am fully aware about Scorpion's role in Netherrealm Studios. But he's got eight costumes if you count the Infrared... don't you think that's kind of enough for one character?