I think it’s more like “Deluge proved this can be done with their own code base after putting a lot of work into their own code base to get to the point where it was possible".
Doesn’t necessarily mean that anyone else’s code base is ready for this approach. If you’ve seen a manufacturer who very rarely updates firmware for a product, it might mean that code base is not easy to change.
See also “It should be simple to code”
But yeah, looks great for Deluge so far, and I sincerely hope others take the same approach.