I get that they have to make assumptions, cause game mechanics, unlike tier changes, can't be reverted back.
Ok, they can, but if they do this it's very unlikely they'll want to revert it back after putting work into it.
Problem is the assumptions they make are very biased and, as far as i'm concerned, far from any possible outcome.
I can't tell the future either, but they yet have to show a single instance in which repels would lose their value.