I'm a shroom person

It increases the efficiency of car traffic, not moving people. It's still good engineering from a car perspective, but terrible urban design.

How so? It's a total traffic killer, in more ways than one :P

The designer of this intersection type actually touted that island as a place where you can "beautify" the intersection with a sculpture of landscaping. Lmao

I mean... the second exit is usually going straight. So that makes sense. First exit would be a right turn (or left in the UK)

Apparently this is actually less wide compared to his original concept that served 19,000 vehicles per hour.

https://www.youtube.com/watch?v=TwE3GzzHIhI

21 lanes wide, however there are medians making it wider than that.

if exercising imminent domain is on the table

It isn't. This concept was not ultimately chosen for this intersection. In fact the inventor of this concept was a pretty... interesting guy.

https://www.tampabay.com/news/crime/2024/04/23/greg-parsons-bomb-threat-tampa-fdot-district-7/