It would feel a little more intuitive if w/b worked on groups of unrevealed tiles instead of just moving 1 space when you were already on an unrevealed tile. i.e. unrevealed = words, revealed = spaces. That way, you could also use them to meaningfully navigate around unrevealed groups better than using h/l. I also found myself missing "e" to go to the end of a word, apparently I use it more often than "w".

I really appreciated the attention to detail though, I was delighted when I realized that gg/G/0/$ all worked as expected.