Why don't people stick with the healer they started with?

[Peptaru]

I'm whm and always have been since ffxi. Medica2 was a minor nerf if even.

The reason the change to medica II is a nerf is because say it used to heal (random numbers) 1000 HP in 15 seconds. Now it heals 1000 HP in 30 seconds. No loss. Except... in 30 seconds, you would have used 2 x medica II, healing a total of 2000 HP in the same time. That is why everyone is screaming it has been nerfed. From there you have to look at overhealing with the higher HoT in 15 seconds vs. overhealing with the smaller HoT in 30 seconds; then threat management and blahblahblah.

The fact remains that you can only heal # HP now in 30 seconds as opposed to #x2