It's not a case of it wanting to apply or not - it's a case of not wanting to break the law.
The Canaboat magazine article suggests the authorities have agreed a boat owner can go and check the boat is safe, because if they don't their insurance may be void in the case of a claim.
CRT is now very vague on this, EA have completely removed the section on when visiting is legal from their latest statement, and now it seems British Marine say boating is all legal from 8th March (although their attached table doesn't say so).