I don't know everything about coding but I'm sure as heck changing the party chat color or making the chat filter toggleble in party chat is a whole lot simpler than adding in 2 entirely new games (bingo (which is pretty much dead already), and parkour).
For something like an app developed by a one / two person team, like you might find on an app store; yes, it is a simple change.
Again I can't go into any more detail, however we have a lot processes and systems that either affect or rely on chat, which can be negatively affected by changes such as these, and therefore require a lot more resources and testing than initially thought. Some of our games affect how chat behaves, and therefore individual exceptions need to be developed for each of these too, eating even more time and resources.
Besides, my point wasn't specifically for this suggestion, just a general stance on suggestions as a whole.
I also refer you to my point that, as this isn't a literal 2 minute fix, and for project structure and development sanity's sake, this will only be looked at the next time a developer is assigned to it.