Sala is an extremely.... strange..... decision.
However, in practical terms, dealing with it:
1. Any FTT Judge / HOPO aware of it will raise it, meaning there is no jurisdiction. In my experience, and having asked in Chambers, this is happening almost all the time. So if there is an outstanding appeal you must anticipate that, unless and until the law changes, the appeals will be struck out.
2. Of those Upper Tribunal cases I've heard of, again, jurisdiction has been declined.
3. I gather than Sala will not be taken to the Court of Appeal itself, by either side, but of course it is HIGHLY likely to go zooming upwards on another similar case quickly.
4. New EFM cases are still often being sent out with appeal forms. The HO have updated their guidance on their website, but in several cases in the past week I've heard of appeal forms being sent anyway.
5. It makes it MUCH more important to do a good application in the first place.
6. The only remedy for the moment will be Judicial Review, not appeal.
I am not, and cannot, offer legal advice to particular people. I can only discuss general areas of immigration law.
People should always consider obtaining professional advice about their own particular circumstances.