I'm honestly surprised to see that Valve is still supporting TF2 so actively. This wasn't just a bug fix, this was a rebalancing patch with map spawns, as well. That's kinda crazy to see for a 15 year old game.
pl_venice is a community map, so the balance changes are coming from a volunteer map creator, not a Valve employee. They're still technically vetting the changes, but only in the sense that they're verifying that the map compiles and loads properly. It's still cool that they're keeping the lights on, though!