From the referenced CNN article

"Two potential sticking points in Haspel’s nomination are her past oversight of a CIA “black site” in Thailand in 2002 and her involvement in the destruction of CIA videotapes showing the waterboarding of terrorism suspects in 2005, although the CIA released an internal review last month absolving Haspel of responsibility.
The official who conducted the review, former acting CIA Director Michael Morell, told CNN that Haspel had merely drafted a cable under instruction from her boss, former clandestine chief Jose Rodriguez, “that he sent, under his name and authority, ordering that the tapes be destroyed.”

So, how is this different from Brennan?