So this document basically says, "The UK has left the EU, so isn't in the EU any more". That seems fine to me. Of course there were consequences, and it is silly to pretend that there weren't supposed to be any. I happen think the consequences were worth it, others do not.
And there is apparently zero tariffs for goods, which should be the aim of the trading relationship between all civilised countries.
And it also has a strong and very positive list of areas of continuing co-operation, such as Horizon2020 and Euratom, which Remainers in my world were crying and screaming about 4½ years ago.