2)
&
were promoted alternate costumes. Does that stop what they exist as being an inaccurate or incomplete representation of who they are as characters in their incarnation as a fighter? No. It means that they are in a LESS inaccurate/incomplete spot by having the differentiation that they do have.
MOST people are not disregarding or ignoring what went into making Asssist Trophies. The present dissent over the matter is namely over the fact that if the work for them was not done for such complex items (which is what they effectively are,) we
could have seen more work done for some characters present on the roster and could have seen more newcomers. Possibly some of those assist trophies being amongst them.
In speculation, people will approach many "what if" situations. Some pose how much of a better product the WiiU version could have been if the 3DS version wasn't attempted (even though it was big financial gain for Nintendo).