Well, also put yourself in their shoes (you as in everyone of us). After years of playing and gaining experience in mastering a prof and a toolset, people have a pretty good feel for what they have now. So any single change taken out of context of a much larger picture may be seen as disastrous.
A very good example is doc heals being nerfed, without a complete picture, and with current mechanics in place, I can bloody understand any doc that whines about it. They'd be useless with our current toolsets, and if some don't do it in a public forum, they do it in a different way (i.e. account frozen until I know more, no reason to continue as of now). That's just an example, I can think of many more.
I think most of the whines would have been avoided if the base-ground for discussion would have been set from the start.