The chance of this man dropping him seems inordinately high, but at the same time Anders wants to help this cat. There isn't any further she can go, so a boost would get him in range. Sure, it will also get him clawed, but he's a healer. He's fine.

"All right. Lift me up. But if you think it's funny to, I don't know, drop me, or toss me, or any of that, I'll have you know I'm a mage and I can and will zap you."