There is evidence that demilitarizing the police works (along with other things) and that some training doesn't.[0] I'm all for accountability, which the link also says helps.
Gear and training dovetail. Like at many companies, LEO training has been "game-ified", and much of it consists of playing with toys procured at taxpayer expense.
I completely agree, though I assume it's because the federal government only pulls federal levers without new legislation. I bet they have more federal programs for military gear redistribution than they do to subsidize training.