Perhaps vaccine skeptics rely more on Facebook because they distrust the media.
Throughout this entire pandemic. one thing I have learned is that there is a lot of back and fourth regarding the vaccine on facebook, and I have seen that it is completely swayed by the media and who is specifically talking about it. This observation made by the author in my opinion is very important because I think theres "distrust in the media" on a lot of different levels and platforms. I do wish the author concluded this sentence more in depth and covered this more than just that one sentence, it's a cliff hanger.