1) Anyone is free to launch a satellite service to compete with Blockstream. This is called permissionless innovation. If you don't trust their data you don't have to use it.
2) Blockstream is not the only developer working on LN, in fact, the main development team is called Lightning Labs, plus there are many open source developers working on LN. The bitcoin community has decided that it wants BTC mainchain to be settlement layer and the momentum behind LN proves this.
2) Blockstream is not the only developer working on LN, in fact, the main development team is called Lightning Labs, plus there are many open source developers working on LN. The bitcoin community has decided that it wants BTC mainchain to be settlement layer and the momentum behind LN proves this.