The root of the problem for Apple is that they cannot get away with doing what they used to in the past, they already have a plethora of platforms within their own umbrella to support, adding Windows native to the mix seems to result in maybe a handful of developers taking on enormous burdens by trying to catch up to their expected Mac apps.
If Apple were to seriously put its weight behind a cross-platform toolkit, this might change, especially as they want their services to grow. It's the very reason why their main service competitors can even compete.
But I agree that if they were to suddenly switch to Electron without a care it wouldn't turn out well, but likely have a better end user experience than their current reveals.