Several thoughts... I'll line 'em up, let's shoot 'em down...

Publish date for 91.126 seems to be 2004.
Was AC90.66A noting "the FAA acknowledges that straight in approaches are
not prohibited" published before or after 91.126?

IF the AC was issued after 91.126 was ruled, shouldn't 91.126 be amended by
now or vise versa?

"Otherwise authorized" Obviously a clearance would constitute
authorization, what about local authorities such as airport owners,
managers, or boards?

Jim