Sounds like the Nirvana fallacy in action. Unless you have a better proposal, complaining about how some improvement isn't perfect doesn't do anything.
Pointing out problems with the current system is not a logical fallacy, and having a working solution in-hand is not a pre-requisite to observing the existence of problems.
Also, accusing me of using the Nirvana fallacy while also accusing me of not providing an alternative policy is literally a contradiction...