The TP change will have very little relevance to Healers who don't use it at all now since sprint no longer consumes it. As for other changes, I have seen nothing to suggest currently that the changes healers will be getting will be any more significant than what we got in SB because frankly they are using the very same statements to describe the battle changes.
Discussing what people find the issues with healing to be now will allow people to look at any changes and judge if those changes are going to have a significant impact on the issues that currently exist. I would add, even when we get that information in May, any discussions are not going to have much impact since by that point it will be far too late for SE to look to implement any significant changes. Discussing it now at least puts it on people's minds. Beyond that I almost guarantee you that someone will post a similar post to yours but instead saying 'wait till you at least try it in game before bagging it' which is exactly what happened at the start of SB. Funny that many of the concerns raised with healing back then when the changes were first shown turned out to be valid.
I get what your saying and it is a valid point. I would love for you to be right though honestly I suspect there are fundamental issues with healing gameplay that need to be addressed to balance the jobs effectively.
The problem is, that they are saying almost the exact same things as they said leading up to SB and that did nothing to fix the balance issues. I would argue in some ways it made it worse. It is how similar this is to SB that makes me concerned. In truth a new healer job would distract me from this issue because it would at least be something shiny and new and part of me has serious doubts they even understand what is causing the balance issues. Without the shiny and new though, I find myself left with the changes the existing jobs will get and I don't have a lot of faith. Their handling of the issue in SB didn't inspire confidence.