"I think MTV should show reality. Losing Shain broke all our hearts," Parrish tweeted.
Although the idea of filming without Gandee "hurts me clear through my soul," she wrote, "the thought of turning our backs on his dreams is worse."
But many others, including some at Gandee's funeral, said the show just wouldn't have been the same without him.
The network issued a statement from Loretta and Dale Gandee, thanking fans for their thoughts and prayers.
"We have truly felt all the love and know that Shain is resting peacefully," they said. "Shain was an incredible, outgoing and positive person who was loved by whoever he met. We are honored that we were able to let the world see what a wonderful son we had."
Shain Gandee was the third BUCKWILD cast member to make unwanted headlines.
Last month, 24-year-old Salwa Amin was sent back to jail for violating the terms of her bond following a February arrest on drug charges. She is facing two counts of drug possession with intent to deliver and remained behind bars without bond on Wednesday.
State Police say a multi-agency task force arrested Amin and two other people at a Summersville residence after receiving a tip from an informant. A search found oxycodone pills, heroin and $3,000 in cash.
Another cast mate, Michael Douglas Burford, was charged in February with driving under the influence.
Some detractors, including U.S. Sen. and former West Virginia Gov. Joe Manchin, had publicly worried about the show and its cast before the first episode aired.
Manchin asked MTV to cancel the show, telling the network's president that it would profit from the "poor decisions of our youth" and that it played to ugly, inaccurate stereotypes about the people of West Virginia.