Naming a methodology and trying to sell its merits is only a way to get the contract but it's not going to make the final product any better.

In my experience, using buzz words and selling the methodology are the only things that can get a proposal past the first stage of acceptance.

Let's be honest, bankers don't understand anything about software but they will feel confident if you show that you know the "words" they've just heard about in the conferences they've attended.

Unfortunately, many crooks know the trick. And they will get their offers accepted but they will never deliver a good product. Bad management and use of cheap and untalented labor are the norm with that kind of software.