Break the Matrix

Ah, well yes. Considering how posterior tongue touches not just the palate, but the lower wings of the sphenoid too, that may have some practical validity:



And in addition, the anterior part of the palate truly is separated by another suture:



In the end, proper tongue posture leads to pressure being generated against both the anterior and posterior palate/sphenoid, so the most useful thing would be to simply focus on achieveing as wholesome tongue posture as possible.