I come from the speaker world and I prefer my speakers over every HP-IEM I have ever tried. Now, I remember the speaker multi-way wars that were going on with the mainstream manufacturers in the 1980's and early 1990's, you could buy 8ways, 9ways, 7 ways, it was a marketers dream, similar to most things people try to market us with the theme, "the more, the better".
Now, look at what happened to the speaker market now, two way monitors have never had it better, Magico, Kharma, YG, Hansen, Verity, Wilson... as people understood that crossovers were indeed a very weak link! and if they wanted multi-way (not multi-driver) the crossovers needed a lot of research and money. Even companies like von Schweickert and Reference3A have been pushing the idea of augmented ONE way. Most well sesoned audiophiles will tell you that for modest budgets most 2ways are better than multiways, it is only when they get very sophisticated full range that 3ways become better, but at a price.
The IEM multi-way war is a well targeted MARKETING PLOT more than anything else! wake up people!