Can ESB/BPM allow to totally get rid of coding apart from wrapping webservices?

Question

In a big company I work for, a very (costfull) ESB has been bought, the purpose is to be able to align with business goal quickly by resusing legacy infrastructure wrapping them with webservices, that is to say no more coding needed. Are ESB/BPM now really mature enough for that because it's now more than 10 years old or is it just an other vendor promise ?