So I read pretty much the whole thread want to confirm that my understanding is correct... The various Fusion seat models are "high" backed chairs that extend up above your ears when you're seated and not reclined?
I would say this is a very inaccurate conclusion from what you have read, and I am not even sure how you came up with it.
The Fusion Collection Seating line has various style groups, and they are all different. The idea was to provide a solution for most possible situations - none-expensive entry lever chair with simple features, narrow footprint recliners for smaller rooms, midsize chairs that have a higher back for taller people, and more than just basic features, chairs for people with "bad" backs, chairs with sophisticated and full array of various features, etc..
The back heights are not the same, and quite different on various styles as well.
Just as an example:
Lagoon-1011 has 42.5" high back
Jive-1013 has 41.5" high back
Tribute-0151 has 44.75 high back
Streamline-1017 is 43.5" high back
Escape-1019 had 42.5" - 45" high back (adjustable based on where the headrest is)
The higher back recliners like Streamline, Tribute and Escape have the back designed the way so while neck/head support is optimal, only the middle section of the back is higher living open space for the surround sound that is not blocked by the chair backs.