It really doesn’t make any sense for the central software repository of a new product to be controlled by an independent third party. I would have a lot of concerns about that if i were a user of these new pebbles
The 3rd party has continued to exist when the first party support died the first time. It's the exact opposite, you don't want to buy a device that is tied to some 1st party service. The service can go down and you're stuck with a brick.
It doesn't make sense in isolation, but the first party failed to do this work for the past 10 years and then wants to benefit from a third party who did do the work.
Either the third party should get a seat at the table, or they should start fresh with an empty first party store