While speaking to io9 to promote his Ant-Man sequel, director Peyton Reed compared Corey Stoll's Yellowjacket to Hannah John-Kamen's Ghost. He remarked that Yellowjacket was a "vestige" from a bygone era of the MCU's history, where the villain would oftentimes be a doppelganger of the hero (see Iron Monger and Abomination).
The specific quote in question was, "The villain in [Ant-Man] felt like a bit of a vestige from the era in which that project was started, [which was] around the time of Iron Man one, where you have an antagonist who has a similar power set [as the hero]. I was hell bent on doing something different."
In the statement above, Reed is referencing the lengthy time Ant-Man spent in development (at one point, it was going to be the second MCU film released) and the fact that the project was originally spearheaded by Edgar Wright and Joe Cornish.
Shortly after that interview went live, headlines around the internet started popping up which purported that Reed had stated that he hated Yellowjacket.
Earlier today, Reed took to Twitter to clarify.