To be fair. Healthcare.gov is a lot more complicated. And has to integrate with marketplaces in all 50 states

Magnitude is also important. If you overpay by 100% on a stick of gum that's bad deal but I likely to have any large consequences for you. But if you overpay for your house by 100% you're probably in a world of pain

CGI is a terrible company known for going over budget and under delivering on a ton of projects. Not that many companies bidding on large government contracts unfortunately

I worked there for 3 years as a graduate and I can absolutely agree with this comment, the guilt of knowing my project (which was a failure from start to finish) was funded by taxpayer money drove me away from the company and made me swear to never work at another big consultancy again.