I believe the "analytical/electrical device" reference was about Wilson Sasha's with Focal sourced tweeters. Having heard Sasha's both in show settings and in a fellow audiophile's home system, I definitely concur with that observation. Despite their high cost, I never really felt they made good sounding music. I think what the reviewer is saying is if you like Wilson's house sound, these may not be your cup of tea. Maybe?
BTW, when someone also shares my tastes in music, makes me pay a bit more attention to their impressions.