You are quite right. The ways were separated only by bollards, and I've added a footpath between them in new changeset/64232985. Thank you for pointing this out.

No, the path is incomplete, and it is terminated by a temporary fence across its eastern end, about 1.8 m high and maybe 2 or 3 m long. The area is part of a residential building site, most of which is inaccessible to the public, at present.