You're wrong, there's no client update necessary, you simply just edit the 'Backend URI' text field in your client's global settings.
Still. Users have to update their Backend URI. Why is this designed so centralized? What's the point of the API server?
As
Ginger Wallet is effectively a clone built on the Wasabi Wallet source code, the same issue would probably apply to them unless they modified something within the code when they released their wallet. In the event the wallet is no longer accessing the designated URL, if it will be as simple as replacing it with another they should have announced provisions for that possibility (with a set of instructions) with every new release.
Ginger wallet comes with its own API server:
https://api.gingerwallet.io/. It includes it in the link you provided.
It could be just a coincidence but also a cheap attempt to add more importance to the topic and generate fake conversations. One could rightly ask how is it that an account that was never active before and never posted anything suddenly decided to post during a short time while the service was offline? And it was for a question that Kruw can answer simply plus advertise his own backend uri.
Eh... I think you're giving him too much attention. And I think it's pointless to expect him to answer you honestly, without sticking to your immoral "Mixer Advertising" background.