One who was definitely aware was Karri Kivi, somehow that guy suited best possible way for this job. We don't absolutely know yet how is the case with Jukka Jalonen. You said he didn't react enough, it's hard to say with these kids which one is right way to act, let things evolve slowly or try things rapidly. It's awe thing too, whatever keeps confident building works best.
This. Sometimes you just have to let things cook slowly, and you have a team that's more prepared to win that way. This was true for Kivi's team too. That group went through its growing pains, and was undeniably stronger because of it. Jalonen may have thought the same way - not acting beyond a gentle guiding hand may cost us the game now, but help us win the day later on.
Besides, one essential ability of a good coach is not to think of things that are beyond his control. Jalonen's main concern should be how his team plays, not thinking about the other group and potential game five matchups. In fact, it's not a great vote of confidence in your team's abilities if you want to see this game won at all costs, because it means you don't give them good odds to advance unless they're facing the other group's scrubs. For us viewers, that's less nerve-wracking, of course. And since you know your goalie can play better than that, you don't want to make him excessively moody either, in case you end up in a position where you have to rely on him again.
One of the difficult things as a viewer is to keep in mind that things may look plenty different from behind the bench than they do from the stands. This does not mean the coach is always right and the viewers are always wrong, but I still wince whenever I see somebody behaving as if he or she has all the solutions - even more so, if they come with a hefty dose of hindsight and essentially pit a personal best-case fantasy scenario against what has just occurred.
Whenever I see a coach do something controversial, stuff that could be debated either way, instead of considering them outright mistakes, I consider them
gambles. If they pay off, it's the stuff that gives you a better team going forward. If they don't, well... there are going to be five million people telling you where you went wrong. But if you're not willing to accept that, you never should have taken the job in the first place. After all, attaining a 100% triumph rate is a sheer impossibility.
And for better measure, let me tell you that a 0% triumph rate - never having won anything significant - is not something you should just excuse away. But luckily, we don't have to go there with J.Jalonen.