In short, this video's thesis is that in multiplayer games, the "difficulty" is not determined by game mechanics, but by how strong your opponent is. As a result, changes that make the game "harder" are in fact just altering the types of skills that the game emphasises.
Games with more busy work (like manually queuing villagers, manually placing farms, etc.) give a greater advantage to players who can make more decisions, more quickly. Games which automate those give a greater advantage to players with greater strategic skill, who can make the right decisions.
Neither of those is necessarily the right decision, but it's something game developers need to be consciously aware of when designing strategy games, and which fans of the games should also be aware of before reacting to/criticising game design decisions.