Hate to say this, but having worked in similar industries, RFPs are sometimes deliberately skewed/ created in a manner that make it hard (or downright impossible) for others to participate.
The problem comes in when things like this happen - that a company forces itself to be the only option through unnecessary infrastructure and proprietary software in the public space.
The biased/corrupt person that ultimately is forcing the decision gets their pick, but doesn't face the full consequences of their decision because "hey it was a bidding, everyone got to offer". People making multi-million dollar decisions should be exposed with plenty of skin in the game for things to ever not be as rigged as they currently are.