Unfortunately there is no evidence of that. He was the worst player on the pitch in the final. You'd think a top player with so much experience wouldn't try to force the issue and keep giving the ball away to the opposition at every opportunity. It was the 50th time that Bruno gave the ball away cheaply which led to the Spurs goal too. I am afraid age hasn't added the finesse to his game that you'd expect. He is still the same player who we didn't recruit in the summer before he was bought because we thought he gave the ball away too much even though he has the ability to make some excellent passes. It is the same Bruno who no top team would recruit and was plying his trade in Portugal at 25.I agree. And apart from few exceptions, most good players thrive in their 30s. I believe Bruno will be even better as he ages as he will become more consistent and lose the silliness from parts of his game.
But I agree with the general consensus that selling him would be more valuable to the team now. But him crossing 30 should not devalue him at all. United can fetch top dollars for him.