Hello kcott,
From perlop#The-Arrow-Operator (emphasis added):
"->" is an infix dereference operator, just as it is in C and C++. If the right side is either a [...], {...}, or a (...) subscript, then ....
Otherwise, the right side is a method name or a simple scalar variable containing either the method name or a subroutine reference, and the left side must be either an object (a blessed reference) or a class name (that is, a package name).
So it appears the Perl parser interprets "XYZ"->$x("fred") as $x invoked with the supposed class/package name "XYZ". I believe this parse option is needed to allow constructors to be called correctly.
Hope that helps,
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