About a decade ago, it was a hot fashion in Education schools to argue that homework did not promote skill development. I don't know if that's still the case, as fashions in Education can change abruptly. But consider what this position means. They are saying "practice does not improve skill", which goes completely against the past century or so of research in psychology.

If your field depends on underpowered studies run by people with marginal understanding of statistics, you can gather support for any absurd position.