Here's a timeline for what happened at Vogtle. No NIMBY lawsuits in there; plenty of screw ups and back and forth lawsuits among the participants though.
This looks like adding reactors to an already existing site. That kind of project won't have the same exposure to NIMBY lawsuits because the site is already there. The kind of project I had in mind was standing up a new site that had not previously had any reactors located there.
That said, I did not mean to imply that such lawsuits are the only issue that drives up costs for nuclear plants. From the article you reference it seems like various forms of government meddling in the process is a major factor, not to mention corporations being more interested in jockeying for position than getting a job done.
