I think Obama was put into a tricky position to begin with. Candidate Trump was already bellowing that the system was rigged against him. Had Obama aggressively and/or publicly pursued the reports of Russian interference in the months leading to the election, then Trump would have had some perceived legitimacy to his claims, and the fear was that that could have sway more voters to his side. I think he was just hoping that the interference would not be enough to swing the election from the democrats.
This is an absurd statement. Pursing the Russian interference did not have to be made public. What a stretch to apologize for Obama...if he was not apologizing on behalf of the U.S. during his presidency, then the media and people like you are. SAD.