Little bit of hyperbole there - IT systems are absolutely critical in many ways, but I think you might want to consider other areas where inferior quality introduced by quota systems could be more or at least as harmful: Infrastructure design / construction, military contractors, nuclear site security, etc.
Just a nitpick; I agree with you in general. This is a situation where the policy may be well meaning, but it needs an exit ramp for situations where it is not applicable - first pass being qualifications, second pass being quota based; final choice then based on full project criteria - Obviously if there are insufficient qualified companies / individuals, the related quota must be irrelevant.