Ethereum is the world's strongest decentralized settlement layer.
Agree the gas fee ensures that some transactions can still be processed. But at peak times only the largest players (ie who can pay) can have transactions proceeded. Everyone else is DDoS’d. So a smaller player can’t really count on ethereum to be “up”. So it’s probably too simplistic to say ‘eth stayed up’. What might be a good way of calculating up time for a chain is based on the max gas fee you are willing to pay. Ie if you will pay up to 150 wei than eth has been up 97% over the last year. If you want to have 99% up time you should expect to pay up to xx wei.
Agree that smaller players need to be on layer 2. That is the right way forward.