Tiny clearances only make sense in terms of incremental weight advantage, unless there might also be some possible aero consideration that is also needing to be exploited.
Shorter fork blades are lighter of course, but also feed smaller bending loads into the steerer and crown (if any). So a lighter and stiffer fork architechture is possible by having a shorter load path from the front axle up to the crown race.

Whether the possibility of a lighter bike is realized by using shorter fork blades and shrink-wrapped crown might also depend on just how the span between the crown race and the handlebars is bridged, where a likely longer headtube (and possibly longer seattube) might simply make the front end stiffer but not lighter.