See my other comments, but measuring light does not prove anything. Light can be refracted in ways unknown to your model, which would bring distant objects closer, invalidate singularities (big bang, heat death). Another model turns those pictures into smudges on a lens instead of unfathomably distant objects, some of which also completely break your model!!

Staying WITHIN THE MODEL for all validation is precisely how you come these silly conclusion about the universe (big bang, heat death).