This isn’t that big in and of itself. A lot of people do not care about fetal tissue. I think the bigger thing is that it demonstrates that Pfizer knowingly lied about that, which casts shade on everything they have said. Especially in light of their past difficulties lying about drugs they produce and getting sued. Whose to say it works at all? You can’t believe anything they say now, regardless of how you feel about fetal tissue, IMO.