Your response doesn't account for the vast change in scale and technology since then. I also was clear that these two things didn't explain all of the expansion just that they were examples of things some folks might not recognize are part of the Foundation's work.
As for laying out their plans, there are dozens of wiki pages[1] dedicated to it and every task[2] and commit[3] to the code is public.
What they tell people in these pleas for donations is the language that actually gets people to donate. If folks would donate after reading the Medium Term Plan, then they would promote but instead humans tend to act only when an emotional appeal is made. That might not work for you but testing and experimenting on those ads proves that it does for most people.
[1] https://meta.wikimedia.org/wiki/Wikimedia_Foundation_Medium-...