The snow issue was brought up in November’s stream. They only have quarterly sync-ups with the data provider, and I think it stands to reason that with the holidays coming up at that time of the Q&A, that sync-up probably did not happen until Q1 2023 (just a guess on my part).
I’ve never seen any code or architectural/integration documents for this sim, but I’ve done many integrations in my career in software. When you change something like the source data, there may be additional architectural considerations and possibly a re-mapping of the data and even new code to consume the data. These things sometimes take time.