They're doing it, it will be done the way they do it. There's just no way to avoid that.

A good relationship means "you're going to get it done my way" includes compromise and conversation. This one clearly already has - since the initial suggestion of a simple ssd upgrade was vetoed.

Is he making a mistake? Maybe - who gives a fuck. That's for him and his wife to discuss afterwards.

Why are you so eager to assume malicious intent here?