Scan-Speak Ophelia: "Revelator" Speakers

I never really understood the point in using a BE tweeter when a "big" midrange is used - also made of paper 😕
The BE tweeter cost a lot.... and if you have high resolution from an expensive tweeter - then why use a midrange with paper - which in my opinion is less detailed. Further - I would use a waveguided tweeter for larger midranges.
Designs like these:
Heissmann Acoustics | DXT-Wave | d appolito tower speaker
They make sense to me, cause there seem to be more coherence between cost and the final result and sound quality.