This question was discussed so many times in W3C group. Mostly this boils down to one thing: there needs to be an alternative to service workers and there are

This question was discussed so many times in W3C group. Mostly this boils down to one thing: there needs to be an alternative to service workers and there are tons of legitimate use cases for long-living background pages or workers. I think by this point everyone agrees on that, the question is when this alternative will be made available to developers. It’s only 3 months until the deadline after all.