Not quite true. The ‘combo breaker’ affects both cascades and future moves lined up for the AI. Check this old post:
Also you can seriously affect that yourself by:
- looking carefully at what your move will set up
- not doing matches in (or below) an area where two skulls are near each other near the top of the screen
- using exploders with caution
- only firing colour-changers when you can control getting 4+
…and so on.