> Could you elaborate on what you perceive as the problem with falsificationism?

Operationally? You have to pick a null hypothesis. You have to carve reality in two, specify two possible universes and ask an experiment to tell you which universe where you're in.

Darwinism (the one in Darwin's works) isn't like this. Adhesion to falsificationism would have nipped that one in the bud.

Stuff like this is the way forward: https://en.wikipedia.org/wiki/Confirmation_holism