Infraction: 3. All discussion should be both polite and civil.
Message to User:
Although this post is not as aggressive as some of your previous ones I am issuing this warning because you and Havoc12 have been progressively turning this thread into a battlefield. Reading though all the posts the tone is aggressive and accusatory and frankly it frustrates not just the readers but the other posters as well. Please tone it down and when you want to reply do it in a manner that is constructive and polite.
You are assuming here that the damage is limiting. That does not mean that overheal affects haste it means that there is not enough damage to heal, but that is already taken care off in the part about 100% overheal. Either there is a big damage phase and a very low dps phase or constant low level damage. If its the former then its just an enforced break in casting essentially. If it is the latter then smaller but more heals will decrease your overheal and increase your effective healing, so haste has even better value. In either case haste is not affected by overheal. Your example and your argument has already been considered and countered.
The damage IS limiting. Bosses use spells in specific intervals for specific durations for specific amounts of damage. You can't heal more damage than you take. If you are already overhealing during burst damage, low ticking damage, whatever damage, healing more will overheal more. It is really that simple. And no, you can't rely on having your haste, just by chance, line up your spell casts with the ticks of damage.
How is an enforced break in casting, a time where you do nothing, NOT a detriment to the value of haste? The benefit of haste is being able to do more stuff, not the same amount. If you can make a special exception for haste in that regard then why wouldn't the same apply to crit? Landing a critical heal is just an enforced break in casting.
I will make a simulation to demonstrate this. Low damage, high damage, fast ticks, slow ticks, etc. with 3 or 4 different haste values. And measure the hps and overheal.