That migration occurred in 2007, the whole thing was replaced by a web app in 2017. Over that decade they saved many millions of dollars. Large scale disturbed legacy hardware is much more expensive than Citrix licenses!
When we started in 2007, systems still using floppies were considered ludicrously legacy and people could hardly believe me when I told them it was still in production and used for a critical system affecting millions of people.
Anyone still using floppies in 2025 has no excuse, stop trying to justify incompetence and sloth.