You have to consider the greater context. Wikipedia runs on a tight budget right now -- they don't need to go upsetting pharmaceutical giants. Gilead could totally sink them with frivolous lawsuits, even if wiki is in the right.

Your commit is dangerous to Wikipedia, therefore seen as "borderline vandalism". I'm sure the mod didn't want to go into greater detail than that because the reasoning is not fun for anybody.

Safety first, unfortunately.