Do I read it right that you want one button WIN solution? If you don't like dotting adds in AoE fights then neither Boomkin or Affli Warlock will be your thing. To me its just the design of the class. We are dotting for AoE, then build AP to drop Starfall and repeat. Sure - we might be lacking AoE NUKE like some other classes do, but what you don't like I actually enjoy. Please don't ask for class to be change because you like to press less buttons. This is why we have different classes and different specs so you can play what you like without taking away fun from others.
I don't want to play one/two button class. I want to have a difficult class that will shine when controlled well. Boomkin might be (or not) become this class for me. I decided to main him in Legion and even if he is average, it will stick to it. I love to have 6-8 skills in my rotation rather then 3 like some classes
If the class is crap (or i am playing it) then be it. But I will not be asking to be given one button AoE Win skill.