Bees ARE a problem
I've been riding a Stratus since '98, and I do enjoy the ventilation provided by loose-legged shorts.
HOWEVER, I did have a bee fly up the leg of my shorts, on the Burlington VT bike path, and she started banging away on my leg. (Before she got to my boy-bits, thankfully). Ice, Tylenol and Benadryl helped.
Roadie shorts with a "diaper", as y'all refer to it, bunch uncomfortably on a RANS seat, and I hate having to pull down my pants to pee. I remember getting my first pair back in the 80's, and being embarrassed by the "look", but they really do help when you're riding with a door-stop crammed up your a$$.
For the Stratus and Screamer bents:
I found some nice shorts at EMS (Eastern Mountain Sports), that have a liner, a fly zipper, and narrow nylon straps at the leg openings that adjust with a ladder buckle. I can set them for ventilation without the parachute effect, or tighten them up to keep out the bees.
Best of luck...Tackdriver