If Electron means that people actually make cross platform apps, I'm all for it. Slightly suboptimal apps are better than no apps or discontinued apps.
But, all those apps ship their own copy of Electron, so there is no simple way for OS to share pages.
In an ideal world that would be the next step if the app reaches a large audience. I'm not sure that from the upstream developer's point of view the investment of limited resources into per-OS packaging is a good idea at this stage...