I've seen this architected.
And then spent 5 months raising every red flag I could wave at everyone on the damned project.
Now they don't understand why changing anything in the environment takes 3 months of planning.
New platform is being built to replace it. I still have my original emails. Will likely end up trotting them out for the next round.
Sadly none of the vendors involved decided to step and admit that it was a mistake to do this...