That's been the regular MD pattern. When enough patrons/players complain there is too little Linda content, they are "thrown a bone" by being given that content.
Then the feast, Linda, gets replaced by a semi-famine of little-to-no Linda.
But pirates complaining does no good. You'll be "invited", and not always as politely as Milftoon-Drama does it, to become a patron to let your voice/money be truly heard.
The key is that MD is tentatively planned to be ~100 updates. Although I agree that Linda has become in Part 2 the superstar MD character (she wasn't in Part 1), Milftoon generally produces LOTS of sexy and fun female characters so there is lots of room/time to fit in other babes besides Linda.