No. Wrong.

You do NOT deliberately or negligently create impossible geometries like your edit did. Your edit left a slip-road that is impossible to access.

Guess what? It shows up on the iD validator as an error. There's a reason for that.

It's one thing to accidentally create an impossible geometry. That happens to all of us on occasion. Same as sometimes accidentally breaking a big relation and causing an area to "flood" or similar.

Your attitude to this changeset on the other hand says to me that you have done this deliberately or negligently rather than accidentally. When the situation was pointed out to you by me your response was to arrogantly dismissed the issue. Even taking aside bus route relations, which have a tendency to be broken by the careless because they don't show up directly on the map or in validators of editors like iD there is the issue of the slip road to the A446.

That slip road shows up on the main map render. The error shows up in the iD validator as an unreachable road. The slip road going from the A446 to the former roundabout is showing as closed on One.Network until 16th September. The slip road you have disconnected from things is showing as open on that website!

So if One.Network shows the length of road as open that would indicate it can be accessed from somewhere. That would indicate it is likely the new route up from the south is now open.

So if you did a "site observation" you would have been able to see whether that were true and mark things up accordingly. But you didn't. You just went in, plonked an edit in place and didn't sort out the consequences of that edit properly.

I've had the "benefit" of your edits before as I recall. The A452 junction at Park Drive and Princes Drive in Leamington for example. This one I don't think I will be able to easily sort out as my chances of going through that area in the near or even medium-term future are low.

Do your edits properly and stop being negligent of the consequences and arrogant when those consequences are pointed out to you. 