If this sets them on a self-sustaining path without having to rely on running highly conspicuous donation campaigns on Wikipedia, I think that's a wonderful thing.
Imagine Wikimedia Enterprise becomes the #1 source of revenue for Wikimedia. Shortly after, people will see that Wikimedia is doing OK and become reluctant to open their wallets and donate.
Then, the top Wikimedia Enterprise customers will acquire leverage over Wikimedia and try to get Wikipedia curated to their convenience. Wikipedia articles will start being indistinguishable from advertisement.
Governments will intervene and want their share of influence too.
Top volunteers will start asking to be paid, many others will leave, some others will become critics of the project.
People will start being skeptical of Wikipedia because of their biased editorial line and then the project will be declared a failure, once everyone is angry and a beautiful project is torn apart by greed.
