Healing doesn't - points or make it less likely to get green/white. you cant get green/white if red is up, so you are better off consuming red so you can get white/green for more points/dps.
it is also easier than paying attention to the particles. mining also has trouble as you only have a 1 tick reaction to do it without lossing a mining tick, so you are better off just clicking everytime you gather. kinda defeats the purpose of paying atteniton.
Healing doesn't - points
Healing does negatively affect your contribution.