I think you're too focused on the website, the main point is that Sanders have a reasonably actionable plans.Is that new? I don't think it was there the last time I had a look at his issues page, shortly after the debate.
Larry David was kind of right about the webpage.
Policy releases seem to be randomly inserted and or updated into existing pages without any changelog. It's good that more detail is being added, but it's impossible to tell what's new.
(Clinton's page has its own problems, namely, that her policy release pages seem to be disconnected from her main page - with no navigational links between. EDIT: oh there is a link, it's just a bit non-obvious)
It's not a ready made legislation that just need an up and down vote, of course it isn't, no candidate has them, but I don't think he stand our from candidates as lacking details.
People paint him as this idealistic pie in the sky candidate who has fantasies rather than plans, but I think the facts don't really support that narrative.