I appreciate the data and am prepared to concede the point. It seems like a mixed result though, as quite a bit of sentiment did flip after the election. From your study:

“85% of Democrats say they are worried the FDA will rush to approve a vaccine, while fewer Republicans (35%) express this level of concern. Notably, women are more likely than men to say they are worried the FDA will rush to approve a vaccine (70% vs. 55%).”

Lots of Democrats were worried that Trump's FDA would do something stupid or bad around the vaccine, but those democrats largely changed their mind when Trump's FDA presented good evidence of the vaccines efficacy and safety.

They responded to evidence by changing the way they view the world. Like you are supposed to.

Meanwhile, Republicans while Trump was in the whitehouse were not very concerned that the vaccine would be rushed or unsafe, and as soon as Biden is in the whitehouse instead, are suddenly terrified of the vaccine.