give a logic for heroic / raidhealing with all the dependicies (BR, Innervate, GroupHeal, TankHeal, which spells to use / which never to use, percentages when to use, and so on), and it is possible to realize
HazzResto isn't that bad, and can be used to heal heroics, but the group should know how to move ... i've tried HazzResto in Heroics and Raids (2 times) and as long as everyone knows how to move, it is possible to heal with this CC (it isn't far away from perfect, but does his work)
It's not only adding spells to make a good healing CC, it's very situational, some bosses need a total different heallogic so u have to write logics for "common" bosses and logics for every special like chimaeron.
So if u can tell a CC-Dev how to realize it to be a good Raidhealer, there should be no problem

But ... u r using a bot ... this is for grinding, farming, questing, AB, PVP ... the bot isn't for raiding (maybe someone will develop a raidplugin, but i don't think so^^ it's to hard to get all the situations reflected in the code)