I don't think that "the cyclist was not wearing a helmet" or "impairment was not an issue" are examples of counterfactuals; the authors should crack open a dictionary look up what that word means in general use, and additionally how it is used in philosophy and science.
If you have word from the police that the driver was not found to have any alcohol or if the cyclist wasn't wearing a helmet, those are simply facts, not counterfactuals.
(An article about an accident should report all the hitherto known facts; then it can't be accused of having a bias with regard to cherry-picking the facts.)
There is a problem with "alcohol doesn't appear to be a factor" in that it lacks conclusiveness. Appear to whom? For what reasons, and why aren't they sure? The driver was able to touch their nose with their eyes closed, is that it? I think a reasonable rule should be to cull any probabilistic statements, or statements with hedge words introducing uncertainty: remove all such statements from third parties, and under no circumstances invent new probabilistic statements in the process of editorializing.
In fact, it's the use of the word accident that may have the counterfactual issue (and good point here). There is a supposition behind it which may be false. Maybe it wasn't an accident? You can't logically call a pedestrian hit an accident until other hypotheses have been ruled out, like the driver had a specific murder motive, or is crazy. It's also hard to call it an accident if the driver was blatantly reckless: acted contrary to the rules of the road which are intended to prevent such occurrences, and which the driver is legally obliged to follow as a matter of licensing. If a walking person falls into a fountain due to texting on their phone, it's difficult to swallow the word accident, since they were practically begging for something to happen by moving through an environment while choosing to block it out.