To be fair, it’s the sort of job only governments can do. Any competent private enterprise would throw their hands up in despair and run a mile.
It’s an attempt to completely overhaul a massive system that wasn’t designed except in regards to each individual part, so really just grew organically - without ripping up the old completely and starting from scratch since that would plunge everyone into destitution.
It’s certainly not an easy job and it’s not surprising that there are significant difficulties.
The problem of course is that no real attempt seems to have been made to think about or minimise the difficulties that have cropped up.