Victor, imagine the initial hex with three evenly spaced adjacent hexes. During the game you must add hexes so they touch at least two hex-sides but with this particular layout the only spaces where a hex can be legally placed FORCE the new hex to touch on three sides, making a match much less likely.
In a two player game there will inevitably be some larger gaps where new hexes need only touch two sides.
You are right. I misunderstood your initial post.