Zero sure didn’t care for prosecutorial discretion in the St Swisher and “I can’t breathe” situations
0bama wanted the issue as a wedge for most of his pResidency, hence, he did not move on illegal amnesty. Now that time is running out on his tenure, he understands that he must grandfather as many illegals as possible to secure future elections before his term expires, and since he will not stand for election again, the wedge issue is no longer useful to his purposes anyway.
If you're looking for the consistency in 0bama's policies, it's easy to find: Grab as much power as political expediency will allow you to have. He has been 100% consistent under that maxim.