Absolutely!

I think that the following is perfectly fine.

my ($x, $y) = @{ $obj->getPosition }
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Depending upon the interface I think that it may be better to return a point reference or object rather than the xy coordinates themselves.

my $point = $obj->getPosition;
do_something_with_point($point);
printf "X is %.2f\n", $point->x;
# or maybe $point->[0] - possibly bad
# or maybe $point->{x} - probably bad
# but really $point->x is the best
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It is funny that you should use a geometry example. Many of the C or C++ libraries that I have seen that deal with graphics primitives prefer to pass around a point struct rather than the individual x or y.

Just because it is possible to make interchanged data as terse as possible doesn't mean it is the right thing to do.