Y'know, I like Batman as much as the next guy (as long as the next guy isn't Chris Sims), but the exaggerated invincible mega-Batman that people often portray him as is kind of missing the point. Batman is supposed to be significantly more vulnerable than the superhumans around him, but able to keep up anyway.
Which is why moments like this one are important.
Flash takes down alternate Batman in three seconds while all of him but one arm is tied down.
He could have done it faster, but he wanted us to see. Showoff.