I can understand, and even agree, with the nerfs to his DPS. Electro-charged Gadgets can dish out some pretty substantial damage by just spamming heals on Brann.
But the nerf to his Survivability was excessive and contradictory to the whole reason they gave as to why they nerfed him.
From the blue post:
So, their answer to that is to nerf his Survivability (60% more damage taken and 20% less HP) so that healers are… going to stand back and just focus on healing him even more? He takes so much damage that my healers just have zero time to cast any offensive spells beyond instant DOTs.