Yes, you are correct in your interpretation of the requirement. If a theme crossword puzzle has only six theme entries, each theme entry would have to average 14 squares in length for a total of 84 theme squares. However, if you have more theme entries, like 12 entries averaging 7 squares in length, it would indeed be easier to work with in the construction of the puzzle.
The reason for the requirement of a minimum number of theme entries and theme squares is to ensure that the crossword puzzle has a strong and consistent theme. Having a sufficient number of theme entries and theme squares helps to create a cohesive and engaging puzzle that keeps solvers interested.
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