Yeah, I can see all your points there, that makes sense. Though in my experience with messing around with my JBL 308's I disagree with your first sentence that these towers have deep enough bass for most music, I've noticed positive effects with playing around with Low Shelf Boosts whilst hitting the same Harman Curve so I've experienced some comparisons with deeper bass extension into the lower bass frequencies with all other things being equal...it might be a case of what you don't know you don't miss (in terms of testing 'subtle' bass extensions into lower bass frequencies on the same system).
Yes, I'm along the same lines of thinking as you on your last sentence there.
Ah, ok, there's 2 crossovers, I had thought there was just one when I first read the review. When you talk about 3 way crossover being needed if they went with different woofers, do you mean 3 crossovers or is that different terminology? If they had 3 different woofers all targeting different frequency ranges and the tweeter, then that would require 3 crossovers, one between each of the drivers, is that what you mean? As it currently stands with this tower speaker I now understand that there are two crossovers, one between the woofer that handles the lowest bass before the other 2 woofers that are targeted to the mid range, and then one between those & the tweeter. (On reflection I think my problem is that I don't understand the difference between a 2.5 way system and a 3 way system.)