This right here is spot on. As a Lindy Hopper i'll often mix eight count, six count, and two count moves in a single dance. Locking oneself into a single rhythm pattern besides seeming monotonous, will make dancing with the music and hitting breaks a nightmare and is often seen as a sign of a newer dancer.
When you listen to music, you will see that a lot of music is built up like this to. There is a firm ground, a reference point. For example a rhythm and a melody. Then the music may take off for a while, with improvisation and fun stuff, and then it comes back to the reference again. Safe back home. Some Pink Floyd music, for example, is very clearly structured like this.
I never plan a dance like that. But if I feel I take off when improvisation, if there is too much six, ten, two, three point seven count moves, I come back to the safe eight count structure for a while.
Anyway, that's me, and maybe only me, and what I believe in.