This is literally a company designed to separate investors from money so aerospace engineers can have fun, which I guess is better than many startups. At the end of the day though there is no way they are designing, prototyping, getting FAA approval for, and going to manufacturing on a plane and engine by 2030. It's not unlikely, it's just not feasible which literally anyone who bothers to look at the FAA website would be able to tell.
https://www.faa.gov/aircraft/air_cert/airworthiness_certific...
"By comparison, the certification of a new aircraft type can take between 5 and 9 years."
And that is just for the plane, engine certification is its own process and just as arduous.