Wrong. This lengthy piece in McLean's from his native Canada finds him in pain from severe back problems and unidentified other issues--an "ailing old man"--talk of this being his last album, and other words of gloom. It seems that he worked on the album for a year and had to give it up due to his health, but his son, Adam, found a chair he could sit in to record the vocals, which apparently turned out great. There's so much more in the article I won't summarize here, just go read it, and it sounds like the new album might be great.
“There were only a few hours a day that we could work. I was dealing with an ailing old man, but an ailing old man who was showing paranormal levels of devotion and focus, and that rubbed off on everybody. The encounters were urgent and sweet and meaningful. It was as if we were riding some kind of mysterious wind.” When he asked his father how he was managing to deliver “the most compelling vocals he’d ever produced, the answer was his condition.” As Leonard sang through the pain, “his immobilized condition led to a giant decrease in distraction. Through monastic training, or something, he had the resources to deal with this acute physical discomfort.”