From my observations, the best lens for understanding vaccine denial (or other related forms of Covid denial) is religious belief. Articles like these are medium-quality grains of opinion supporting that belief. Outside Covid, such things are obviously not in scope for HN, but the virus has captured our attention.
If I were the mod, I'd have an explicit policy that Covid stories need to come from high quality sources. Dissenting or unusual perspectives are fine, but these "just asking questions" pieces with confusing (at best) statistics aren't. And I'd honestly consider most mainstream press pieces not to clear the bar either. There are some excellent science journalists and bloggers out there (Derek Lowe is one of my favorites of the latter). We should be listening to them, I think.