Yes those questions are answerable. Whether they are good or un-opinionated answers, or whether the question should be closed (for whatever reason) is a different matter and sometimes involves some thin ice.
The system allows us to close questions when we think the answers will be primarily opinionated. However you can give an opinionated answer to every question (whether the opinion is relevant is another matter altogether, if an answer is too opinionated there is of course a chance of mod intervention ). You can also try and give a factual answer to a question that would primarily invoke opinionated answers because of the way it was asked.
For that particular question I think the ice is thick enough, and an answer that includes some factual information about e.g. when
info and the newer browser based information system came into being, can be useful. That answer can include a time-line of gestation and a gentle reminder of the circumstances for the younger generation (like Gilles already started to do in a comment).¹ There might be some guesswork involved, but if appropriately indicated in the answer, that is IMO fine (clearly indicated guesswork can always be confirmed or rejected at a later stage, and most importantly readers do not get confused by mixed fact and guesswork).
Such an answer is not necessarily hard science, but you can say that as well from a history thesis, if you compare it with physics' one. Having some historical information around can help us do a better job solving similar issues. And as such this particular question can be valuable.
¹ Sometimes you just have to have been there to experience it.