Wouldn't this be expected when companies are pruning the lowest performers? They got an extra boost to get in the door, but naturally, some won't take advantage of that and will be dropped when times get tough.
It reminds me of how Cal graduation rates went up when they couldn't use racial quotas.
We’d all benefit from your inside view of positive support for people with potential at some of the largest, sometimes hated for their perceived indifference/profit-above-all, tech companies.