> And the point they were trying to prove in the post is it was possible for others.
Qualifying for sign up rewards is doable by almost anyone with decent credit. And if you didn't have the credit, you wouldn't be able to get the lease anyway.
Did you also do the math for how long it takes to accrue that many points and how much money you need to spend to get access to them? I don't see any evidence that you considered those factors.