A most interesting thread to read...
My conclusion from long ago (worth nothing) is that FTM is, as someone mentioned, a vehicle to draw people into a RECURRING revenue stream--ancestry.com membership.
Second conclusion is that it not capable of use by high-end users...meaning people who are diligent about sourcing, images of sources and other images, etc. In other words, it works fairly well, usually, for entrylevel-to-midlevel trees.
In short, it is a consumer level product--not really the best product for dedicated genealogists or semi-pros, much less professionals. OPINION.