This - from 2015 - seems to pre-date my link from 2016 that says equitable sharing was reinstated. So he maybe temporarily plugged the hole but then took the plug out. Well, technically Lynch did, but we don't assume she'd do it over Obama's disagreement.
He did what he had the power to do. Getting rid of the whole hole would have required Congress to cooperate, which was a tall order when one party vowed that it was its mission to guarantee his failure.