You wanna know why speaker modeling (and mic modeling and anything else modeling) NEVER works. Because you can not use an EQ with out introducing phase issues, and you will never recreate the phase issues introduced by the crossovers and processing of the speakers. Your ears notice this stuff, even if your mind doesn’t do so consciously.
You wanna know why speaker modeling is a BAD idea. Because it DOES NOT MATTER what your speakers sound like, as long as they can handle the volume you need them to put out. What matters is how well you KNOW what your speakers sound like. Then you can know how you mixes will translate. Change the sound of your speakers (whether by getting new speakers or "modeling" a new sound) will require months of relearning your speakers.
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"Cowards can never be moral."
M.K. Gandhi