Even if they make straight in approaches at non-towered airports?

There's nothing wrong with a straight-in approach.

Overhead approach is far better -- it lets you see other traffic in the
pattern, and, done right, gets you on the ground fastest.

Both approaches are fine, unless the pattern is full.

Jose is referring to my vocal disdain for the (usually corporate)
pilots who come blasting into a full pattern from all angles, landing
on any runway, from any point in the pattern, without regard for
procedure or protocol, putting everyone at risk in order to save a few
gallons of Jet-A/Avgas.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"