To be fair, that was just great goalkeeping. Kane's first touch to take it round the keeper was good but Vaclik read the situation extremely well. If Vaclik hadn't positioned himself right in front of Kane, denying him any kind of angle, it would've been a tap in for a world class finisher. I suspect the only way Kane could've scored with Vaclik rushing out smartly would've been to take the shot on first time, which would've made it more of a half-chance.
And that leads me into a bit of a ramble, not necessarily aimed at you but using your post as a launchpad...
Kane should've done better with the air shot but that's the only big chance he had apart from the pen IMO. It's forgivable because he was so involved in the rest of our attacking play. It wasn't like one of the recent qualifiers where Sterling was doing the build-up and Kane just had to be clinical (which, to be fair, he was). Every threatening move we had tonight started with Kane or otherwise went through him. The pen came from an inch-perfect first time ball into the path of Sterling.
Kane might have been nominally (or numerically, hm) our 9 but he was playing a sort of CAM role, as he very often does for Southgate, with two or even all three of the line "behind" him more advanced in possession. After it became obvious that our forward pipeline was broken, match conditions forced him to drop even deeper, essentially into central midfield, which has been a common pseudo-tactical (mis)use of Kane for a long time now. Him dropping incredibly deep to see any ball has been a far too frequent sight for far too long.
Kane's hold-up and playmaking are superior to that of most players so he gets put further back in the forward pipeline, despite it not being his native or strongest position, to compensate for the shortcomings of others. This happens in the ailing Spurs diamond all the time: the formation only benefits Son playing on the shoulder of the last defender, while Kane is out of his ideal position and made to build from deep. That's the curse of being very good at most aspects of football. I've called it the paradox of Kane: ideally, both Spurs and England would want a clone of Kane creating for Kane but whilst cloning is not included in FIFA's Laws of the Game, managers have to make a decision over which Kane they want or need most.
Unfortunately, managers tend to be greedy with their best players and both Southgate and Poch sometimes seem to want to have their cake and eat it too. Sometimes it almost seems like they make cardinal mistakes of football fans in thinking they can give their main goalscorer a playmaking role and still reap their main goalscorer's bounty of goals. It's a simple yet apparently oft-forgotten notion that the guy who starts your attacks is rarely going to be the guy finishing them, and - as tonight's performance perfectly illustrates - both are equally important, despite the headlines.
I've recently spotted a common mistake of expecting Kane to still score like he did when he was a pure 9 allowed to stay relatively fixed against the back line with a team capable of servicing him there. He no longer has either of those things at Spurs or at England, so he has to play a grab bag of roles and positions from striker to CM. The benchmark for a good Kane performance has changed accordingly and now it's much more subtle: at the moment, he's doing a bit of everything and the majority of what he does is just not high-impact CF play anymore. His selfish days are long gone - a lot of Spurs supporters actually want him to be more selfish - and in struggling teams, he makes everyone around him look better at his own expense. I firmly believe that a lot of people won't fully understand what Kane does for both of his teams until after a long-term absence (e.g. most of a season) when the sample size will be there to bear out the difference with sufficient statistical power.
Regardless, even on a night like tonight, where Kane's elite passing variety, accuracy, and vision was on full display in a manner obvious to anyone looking for his contributions, some will look only to a missed chance as the sum of his game, because that's what he used to be and, by number, putative position and reputation, still is -- even though he's not.