2.1 Boombox - Seperate full range from sub?

Noticed when looking at designs that some separate the sub from the full range drivers, giving them very little room to breathe. E.g

https://boenicke-audio.ch/products/loudspeakers/w5/

while others throw them all in a single box like the B&O Beolit: https://fccid.io/TTUBEOLIT17/Internal-Photos/Internal-Photos-3210730

Also seen people build the Isetta with and without separating the full range drivers: https://sites.google.com/site/undefinition/portable-and-tabletop-speakers/isetta

Anyone have strong opinions which way is better?
 
Always seperate drivers in the enclosures (except when they are the same type and playing the same role), otherwise they interact with each other and create distortion. That is a very basic rule in multiway speakers. The woofer will use the fullrange as passive radiator as the magnet of the fullrange is not powerfull enough to deal with the force of the woofer to simplify the explenation.