Of course you don't recall. That was my point.
In fact, upon taking office Obama immediately reassured the financial community by appointing Goldman Sach execs and Wall Street bluebloods to run the economy. He bailed out the banks and when it came time to enact fiscal reform in the wake of the disaster, Obama played it right down the middle with measures that sounded good but had no teeth. Obama grumbled about the Bush tax cuts, but did not fight the Republicans when it came time to renew them. Single Payer Healthcare was left. The Affordable Care Act was dead center, a proposal that had been approved by both Republicans and the health care industry for decades. His Supreme Court nominee Merrick Garland was hailed as a non-controversial moderate --- Garland was John Roberts highly respected mentor and would have sailed through any other Congress in our history. Find any environment or civil rights initiative from Obama, and I'll find you something equivalent from the Reagan administration.
Obama never stopped fighting a drone war on terrorists. It was low-profile but highly successful, and sometimes horrific when bombs strayed into unsuspecting wedding parties. Obama violated Pakistan air space and a corrupt Pakistani government to kill Osama bin Laden and dump his body in the ocean, a move that should have had conservatives dancing in the streets. As you mentioned, Obama also kept a lot of the Bush administration's security measures in place, including our controversial international rendition programs. Some of this quietly vexed liberals. Progressives never considered Obama one of them. Hillary Clinton was even more centrist and hawkish, but perhaps that's another story.
So it's no surprise that you have the idea of Obama's "disciples" all wrong. The hard left is Bernie Sanders and Alexandria Ocasio-Cortez, the Green New Deal, Medicaid for All, and Free College Tuition. Attack those ideas all you want. Just know that far more Americans support them then either party wants to admit. Obama always had a chance to go "hard left" and never did. Not even close. Hence no hard left disciples. Even in the safety of private life he has avoided endorsing the progressive wing. His preferred successor, Joe Biden, is moderation with a free shoulder massage.
In case you hadn't noticed, DNC leadership is circling the wagons and trying to protect their turf from their own left wing. Obama remains the standard because of his centrist appeal.