I don't think there was a fallacy involved at all here. If in fact critical data is missing, then OP is right to point that out. This doesn't inherently negate

I don't think there was a fallacy involved at all here. If in fact critical data is missing, then OP is right to point that out. This doesn't inherently negate the conclusions of the article (and claiming that it does would in fact be a fallacy), but I don't think OP was claiming that anyway.