Apple has to take some of the blame from this, MacOS without Electron apps is a much less useful proposition. If they knew they were going to change this API in this release it would have made sense to reach out and offer a public way to Electron.

End of the day the needs of users running Electron apps outweighs whatever opinions the internal Apple team has about their APIs

Absolutely not. Apple has zero responsibility to anybody for changing a private API. That’s the whole point of it being marked private.