So you are taking what the game is saying and taking it further than what it is meaning. Also, less puck skills don't equate to less passing and shooting per what it says in dump and chase.
Also yes faster and more physical players have a natural advantage. Same goes for taller players. However, if everything were about speed, physicality and height alone the NHL would be another NBA like league with everyone as tall and fast as possible. Also the Leafs and Lightning wouldn't have made the playoffs because they significantly lack in at least one of those 3 areas. Ultimately if you don't have the appropriate skills to go along with the skating, physicality or height then those skills themselves don't matter either.
For dump and chase you want to focus on speed, physicality and spirit more than puck skills however passing and shooting skills are still relevant. Hence why, between the two players in the prior example, player 2 is still better than player 1 higher up in the lineup. While player 1 has the speed and physicality their actual skills of passing and scoring are so low that they aren't actually then good enough to really generate or take advantage of scoring chances.
In regards to the spread tactic, it is asking the players to be very aggressive in their positioning and attack the puck carrier. Thus speed to catch the puck carrier and physicality to potentially force them off of the puck are important. That doesn't, however, necessarily mean that more speed and physicality is better defensively.
Since this is along that tangent I am going to mention physicality on the PK. It is only important if the opposing team uses the spread PP tactic since that tactic is about using physicality to get to rebounds. Beyond that, the only two relevant skills to look at for the PK is def and then spirit.
Edit: I should have said this when I was originally replying. The only thing that the in game description of tactics is telling you is what skills you want to look for and get in your players that will make that tactic work best.
Edit 2: And on that in regards to the player examples player 2 would still likely struggle in your system that emphasizes speed and physicality even with him being the more skilled player. The player that you really want to be looking for in comparison to those two looks something like this.
85, 85, 75, 85, 75, 85, 75, 75, 85
Notice how this player is different from the other two. It is these small differences that you need to pay attention to as they make a world of difference in terms of results.