Actually, when Spurs lose a match I tell the truth, which is usually that we deserved to lose, without making excuses concerning the match officials or whatever. And when we signed Sissoko, for example, I criticised that decision for the money involved.
I strongly doubt they'll be any statement from Pochettino about United. It's just not his style to address such rumours, just as he didn't concerning RM in the summer. He basically doesn't feel the need to comment. He's said he's very happy at Spurs, feels at home in the club and feels an emotional connection to fans. I also think he's man of principle and having signed a new contract will stick with it.
So let the story grow and grow: that's the way of click-bait and won't change regardless.