Does a blood hunter gain a new blood curse at level 20?

In the rules for Matt Mercer’s Blood Hunter class, the rules regarding the Blood Maledict feature (essentially using blood curses) state that you get an additional curse at 6th, 10th, 14th, and 18th level. However, the table provided says you have 6 curses at level 20.

Do you or don’t you gain a curse at level 20?