Actually I never expected Ronaldo to miss the penalty because if they are given a breakdown of the players that are very good with penalty of course Ronaldo will be there because he is known to be very good with penalty but it was unfortunate that he had to miss the penalty, though the reason why people are talking about it too much is because of what Ronaldo represent in the world of soccer so people always have a very high expectation from him, though I wouldn't blame him on the penalty he missed because no matter how perfect someone would be in the game of football there is no way to guarantee 100% perfect all the time, however had it been that Portugal managed to win Ronaldo wouldn't have been very happy with himself.
Every big player is having good and bad days so we have same for the Cristiano Ronaldo things were really tense in this game while we have no goal in first 90 minutes, and then we have missed penalty which bring Portugal on verge of qualifying for the next round on penalties where we have exceptional performance from the Diego Costa, but now it's time for the coach Martinez to take few bold decisions for the teams improved performance because if he keeps things on this level surely they can face more consequences as well which could be not good.
Having too many big players but not bringing them on field is surely not good strategy which can make things more problematic they need to work on this for the better future without this we are not going to have good performance and better results now Ronaldo is 40 years old, and they need to have him for the 30 minutes or one half which will surely helps teams on positive way.