I have no freaking clue! But the game steadily improved over time, patch after patch. And I'm expecting it to keep improving.
They obviously invested a lot of time and thought in this new system. Being worried is a thing, calling it broken before launch is another.
For fuck sake, we don't even know what everyjob can do. We just know dragoons...
I'm actually expecting that the team working on PVP has thought about these things and balanced this stuff a little better than what you proposed with your 2000 hots and 5000 heal. You're not concerned about 3-4% unbalanced gameplay here...
The number you've guess are so gruesome that they don't even make sens. I actually took the time to look at what the DRG can do and made some guess according to that and what would make sens. A healer able to overheal a dps with 1 single hot only isn't a balance scenario and doesn't make any sens. Nor does the ability to spam 5000hp skill. Does it make sens for a healer, with all his tools, to be able to overheal a single dps? I believe yes, 2 dps, perhaps if they're not unleashing everything at the same time. Does it make sens for a healer to be able to whistand 4-5 dps? well... maybe not.
Concerning the CC in PvP I share some of your concern too, but again, I won't make any doomday claim until the game is released.
Maybe they tried giving 1 stun to dps and realised it did more harm than good, which is why only tank (with probably lower dps than melee) will be the stunning player.
You sound like all the WHM on the healing forum, they're all about to commit seppuku.
I'm not saying it will be fantastic and super balance on day one, happy butterfly and rainbow unicorn stuff.
But I believe the core change they did will improve the state of PvP by allowing more players to dive in it.
PvP is currently overwhelming, and if your reply is "but they dont take the time to learn it", well possibly, but if the vast majority of player don't wanna take the time to learn it because "it's overwhelming". Then perhaps they should do something to adresse the issue, and this is what they did.
And btw, to everyone valuing pvp in FF14, when it get released, you guys should make constructive feedback on what to improve, why it doesn't work and what could be done (realistically)to adress the issue.
Because if there's something people are good at on forum, it's to complain everything is broken without even saying what is (which obviously is immensly helpful to the dev). The devs do read our feedback, the removal of the casting time on bard and mach are a proof. When you hear Yoshida speaking, you can see that he's aware of many of the current issue.