Just tried this on Veteran on my Lightning Sorc. Lev 70, gear is 230 and I get killed in less than 1 minute. Don't even get past 1st round of adds. I have tried Kaliyo as both heal & tank.
There's definitely something odd here. I changed the difficulty to Story, and still had the same issues and was far more difficult than when I first did this on the same character when Kotfe came out.