re: Kevziek's comments -
"Music lovers" generally choose the material (software) they listen to based on these 3 factors in this order:
1st. How much they enjoy the composition/songwriting
2nd. The quality of the performance
3rd. The sonic attributes of the recording
"Audiophiles" one could argue, reverse those priorities.
Unfortunately, the vast majority of music that rates highly by 1. and 2. above was NOT recorded with audiophiles in mind. Therefore, if your analysis is correct, you have just established that these speakers will not produce an experience that appeals to "music lovers" most of the time.
Now "audiophiles" on the other hand, generally are looking to go a little more high end than the JR's which apparently are not finished particularly well and certainly have arguable sonic compromises. (Complicated 4th order crossovers, rear-firing "ambience" tweeters, and ported cabinets disqualify it as far as I'm concerned.)
So the audience that will be truly happy with JR's is "audiophiles" who can't presently afford more, or "music lovers" without very discerning ears.
This probably explains why a fair number of JR's started showing up for sale used pretty early on in the product's life/hype-cycle. Which is not to say they don't work for some people - but clearly there are valid reasons that they don't work for others.