I do wonder how this will affect potential customers who would launch communications satellites on SpaceX, but are worried about handing over something proprietary to a competitor.
In the long run though, success at scale with a system like this relies on the typically guaranteed losses. A certain percentage of rockets will fail, a certain percentage of satellites will fail, a robust system will be designed to accommodate this.
(Of course, and this is probably the topic of a totally different thread, the tolerance for this must change dramatically when there are people in there.)
I'm not saying I want more concentration, I'm just saying that the path to de-centralisation is not that clear cut (at there is a threshold were we have to talk about CO2 emissions).