Yes, people just missed their chance to get crypto and become profitable. To my mind most of them missed train and also sold on a bottom. But they can easily change boat to join profitable way
We are well aware of what the cryptocurrency is capable of, compared to the maximum price, the current price of Ethereum is simply scanty and I do not understand what missed opportunities we can talk about
Maybe he is a newbie and has not taking time to study the maximum price each of this crypto has ever gotten to, if he studies them, he will realize that he market is not near missed opportunities.
Though the market is showing green light this week by strong analyst but its just still based on speculation and not a firm prediction, in as much as the market has not broken the resistance and just trying to test, I think there is still lots of opportunities like you rightly said and there will always be opportunities in the market irrespective of the time of joining.