Sure, sometimes you cant have it all, but in my experience (and hey, I am aware that I'm biased here!) I've seen ops engineers being better at programming than developers at doing ops. Another reason why I'd prefer to have 2 devels and 1 ops person is that that single ops person can bring to the table entirely different experience and point of view and that's a pure added value here.

If you think that infra teams is wasting money, then I'd say its the same case of 'serverless utopia' - when you're using 'purely automated serverless' platform you're paying way more money, because, hey, someone has to build that infrastructure and it isnt magic, its people, ops people. So what you're doing here is simply changing money buckets labels in your head and you have to now deal with a product that's tailored for everyone, instead of you specifically.