I might not know the real consequences of this policy by the government of Liechtenstein but it is good for bitcoin publicity and awareness. They might have some negative intentions but those restrictions can be surmounted. It will only take time for bitcoiners to devise a way to invade such privacy or centralization issues.
Hence, regarding the network congestion happening recently, bitcoin communities lament that the Liechtenstein government has not experience network congestion, before the bitcoin gets converted into Swiss Franc it'll take time and they'll pay higher fees too. Hopefully, the whole dust transaction gets decongested before Switzerland concludes its decision of integrating bitcoin as a means of paying government fees. If these countries, adopt bitcoin payment it'll boost bitcoin, but if the mempool busy traffic continues it can demoralize them from taking this step.
We all hope that this traffic issues is settled because it could actually serve as a discouragement. But the government of Liechtenstein should understand that the Bitcoin space has its challenges so if they want to adopt Bitcoin for payments, they should also be willing to be part of the solution to the problem. This issue will not last for a long time, I guess.