I don't get what all the complaints are about. I'm assuming the new barrier will be tweaked to be about as good as heal currently is for the single champion who uses it, obviously without the grievous wounds possible side effect. Heal on the other hand is getting a nerf. What this is essentially doing is making barrier the new substitute for how heal is currently used and heal to be more supportive rather then a baiting trick. If barrier is so devastating for casters, why don't midlaners just get heal? Think about it.
That and Surge was way too niche. I think they're aiming for diversity for builds and characters as a whole. Surge is the only summoner spell that could potentially do absolutely zero for someone if they're not the right champion; it's not diversity, it's just plain silly.
Alas, I like the changes Riot is making a lot and couldn't have asked for better, I just hope to see it executed well.`