Ohhhh, this is what I follow sports for. The moments when great players do great things under incredible pressure.
Yes, it is truly wonderful to see matches like this!
Sometimes a team plays it the right way, takes all of their chances and gets the maximal result that they can obtain. This is what Portugal did tonight. All the headlines will go to Cristiano but the team got it right and I watched them somehow weather some fantastic play from Spain. A few of the breakaways from Portugal that didn't actually come to anything were sublime with Ronaldo himself playing some absolutely incredible one touch flicks or passes to set the correct person away to make a few 2 on 2 situations but Spain get back to cover so quickly.
I think that 9 times out of 10 Portugal lose the game I just watched. If they just drop their level by the slightest percentage, Ronaldo doesn't take every chance, De Gea doesn't suddenly develop butter fingers or Spain wrap up a couple more chances that they created. But this is why this sport is so good! Incredible game. Incredible game!
I agree with you that Portugal would lose under slightly different circumstances. I'm not completely sure about "the team got it right", because they made pretty basic errors. Guedes should've scored that pass from Ronaldo, and Quaresma also had a pretty clear one. Regardless, it was an amazing game by both sides. I just think Portugal still has a lot of work to do. Nothing surprising about Pepe acting the way he did.
Who do you favour for the golden boot? Ronaldo got 3 but how far will Portugal really get? Costa got two and I still see Spain going all the way so he should have 6 more games to build on those 2.
Ronaldo is certainly a candidate. Messi is as well, especially because he could get plenty against Iceland and probably one or two vs Croatia and/or Nigeria. Griezmann, James Rodriguez, and Costa also serious candidates. But I'll be able to give better predictions once the group stage is over, or at least the first set of matches.

Exciting last minute finales in the other two games today, great performance by Iran. They did what Saudi Arabia would have hoped for, putting on a resilient and slightly fortuitous display to get the result.
I have a feeling we will be seeing many more of those last minute goals. 5 out of the 13 goals so far have happened after the 80th minute!