7 days from disclosure to publishing a how-to guide to get root to the entire planet doesn't scream "responsible" disclosure to me.
My immediate reaction was the same.
But this is very similar to Copy Fail, and I'm assuming there was an assumption that others might also discover this soon as well. Hence the urgency.
At least that's my charitable interpretation.
WTF cares? Publish them without disclosure is the true way, otherwise noone would care about security and your data.
Its not the reporter's fault that other people broke the embargo.