Somebody's date/time stamp says 4:55 PM. Wonder who's that might be? It might be a "received" stamp rather than a sent stamp. Don't know if those go on the bottom on some or all machines or not.
Entirely different font, the zeros have no slash. That 04:55 indication at the bottom of the page may come from whatever word-processor/printer the judge used, then taking that and faxing it to the Courthouse, and then the Courthouse faxing it to parties. FAX-impressed timestamps appear right side up when they are at the top of the page. I've never seen otherwise.
Even if this was written by somebody in the Obama camp (unlikely to be true, as in being the direct author, but not unlikely for a judge to lift passages from argument - PACER has no links to any of the briefs, so I can't compare argument with Opinion), Judge Surrick has issued language under his signature.
I haven't read it yet, but I've found that attacks on the arguments themselves, and it's fine to ascribe positions to one party or the other, work best.