Earlier quoted context omitted.
I'll bite. Define "better" here.
Not a fan of electron at all. But I think it points out the direction for the future of gui. There's a whole generation of new languages (rust, go, dart, D, ...) that wants to get into the gui-space and finding QT and GTK problematic. QT is known for "using every C++ feature", making it less than ideal for bindings. GTK is not very cross platform I think, and is criticized for beeing gnome-centric. Both toolkits are…
Making a wrapper for Qt is not really any more complicated by Qt being written in (old-style) C++ than if it had been written in C. In fact, lots of languages do have Qt wrappers. As for Qt being object oriented… well, while that might indeed have been a problem for a language that is not… all your examples (rust, go, dart, D, ...) are, so that's hardly the problem there. Also, as far as the declarative and reactive goes: Qt does do that as well, and way better than any browser-lib-based webrendering engine (including mozilla's)
The real pain point with Qt is with its licensing at least since Qt was bought by Digia.