it's always easier to choose an automated solution.  the downside is that the automated solution doesn't always work.  if CrossDresser works for you, that's absolutely great.  if it doesn't, heavier duty tools are necessary.

as for your question, my guess is that the creator won't change their mind.  the problem isn't making something that works for one person in one particular scene.  it's making something that works in general and doesn't take more time and/or money than it's worth it to make.  most merchants know all about the different tools to fit morphs.  the problem, in my experience, is that most people don't dial body morphs much, and those that do tend to choose popular characters.   not too many really dial a lot of morphs.

super-conforming is really based on a bug that should be fixed.  and every morph makes clothing more resource intensive.  simple clothes with lots of morphs will be just as heavy (if not more) as something incredibly detailed but with a limited number of morphs.  then consider that most clothes are conforming, so quality clothes need a whole lot of morphs to duplicate what actual dynamics do. 

so it's all a balance of usability, audience, and resources.  if a merchant has already decided that it's not worth it to support a particular FBM, one customer's modifications probably won't change their mind.  if anything, they could probably say it's easy enough for customers to do the fit themselves and point to the render.