Well you said he can't run away, and I'm saying he can. Stop contradicting yourself. And I highly doubt a pro player is gonna let themselves get attacked for a full 2 seconds. You're probably looking at 1 second, which would translate to 3-5 attacks, definitely not enough to kill him.

You say ursa is one of the best counters to gyro. I fail to see how you cam to this conclusion. If you are talking about bursting down gyro, I would think sven is also one of the best counters. Ulti + Mom + blink and start with a stun onto gyro. Wouldn't sven be more reliable? Plus you have warcry to run him down for that last hit if gyro is still alive. By your definition, ursa is the best counter to any hero really since he can burst all of them down and they can't 'run away' like you said.

And most importantly, your mentality is extremely one dimensional. This is a competitive game, not a pub game. You are implying that his team will not be behind him as he pushes towers. When supports like wyvern are common, do you think ursa with bkb accomplishes much? Even then, do you not think the supports will have items like glimmer, force, solar, or mek/guardian? How does ursa burst a hero down in '2-3 seconds' in that situation? He still suffers the problem of being kited just like sven, because these heroes only offer single target burst. The scenario you describe happens often in pubs, but in competitive? Just no.

You keep denouncing 'reddit mentality', yet you are so adamant about ursa being so good. Your 'I am right attitude' is exactly the same as the people you are mocking. I'm not saying he is not legit, but the way the hero works puts him in a bad position in this meta, and definitely not in competitive unless a team drafts around him, with him being in the centre of the strat.

You need to remember pubs are not the same as competitive, and learn to understand what 'meta' means and that dota is not a 1v1 game.