Unless you can buff them, that is. A few people found that you could cast Power Word: Shield and Power Word: Fortitude on the bots when they first came out, which meant that you could give them more health and make them invincible for a few seconds. Unfortunately, Max Bliss found out that's not the case any more-- Blizzard has performed a clockwork nerf, and the bots are now unbuffable. Lame.
Sure it may be imbalanced that some people can buff their bots and make them live longer, but this is hardly an instance of life or death. Let the bots be buffed, Blizzard!