I think oftentimes what happens with releasing content soon after launch is there is already a plan for it before the game already comes out (Obviously, these DLCs aren't made in 30 days) - the real probably specifically there is that in some cases, no matter how the launch goes, there's no adjustment to that plan - DLC comes out as planned even if the launch is lukewarm. A game has to have an incredibly terrible launch, like CS:2, for the gameplan to actually change and the focus to go to nearly 100% game improvements before DLC. As mixed as the reception to Planet Coaster 2 is, there's been far worse launches. For those who enjoy sitting building, the 2013 release of SimCity was so abysmall that it destroyed the iron grip that EA had on city building.
For sure! And, to keep it leaning toward Planet Zoo, let's all not forget what the launch of PZ was like. The game was missing a whole mess of important features and the first DLC was incredibly lackluster. I remember being disappointed in the relatively small number of new species, how cartoonish a lot of the scenery felt, the lack of flexicolor options, etc. It was still fun and fine, and clearly I remained dedicated to the game but... To your point, it took them some time to really adapt to what players
really wanted.
I also remember the narrative of "this should have been in the base game" being around
constantly at that time and it faded away eventually. But, looking back at it, the reality is: Yes, they could have waited and added certain things to the base game. But then the game's release would have been delayed, the price may have been increased, etc.
In all honesty, the approach of developing a game post-launch is very compelling to me. Especially if the game is "good" at launch and grows to be "amazing" and the developer is
very clearly paying attention to what the players want (like we saw with Planet Zoo). Because not only do we get a great game but it's one that we got to get comfortable with certain features along the way rather than having to learn everything all at once
and as a community we got to help inform where the game went.
Will PlanCo2 and the eventual PZ sequel get the same treatment? Time will tell. But to your original point, I think its way too soon to call it.