I'm wondering how much work will be required to get it back online and running as before. It's been many years since I had a website and I don't know how site hosts work these days. Would he be able to reach out to the webhost and get the site restored from a backup? That would be the quickest and easiest path, but I have no idea how cooperative a site host would be with a deadbeat account that was relatively small.
Otherwise, there is a whole list of questions I have. Does he have the domain name, or is it unsecured or belongs to someone else? Does he have backups of the site, in the event that he needs to restore it? Does he know, or have someone who knows, how to do that and get all of the links and scripts working? (Or is that even necessary? Maybe it's a WordPress site or something?)
There is a lot to wonder about even before we get to the question of whether he has the drive or desire to update the site regularly anymore. Writing short articles should not be an issue for him, he seems to spend all day typing up missives on social media. Short commentary on JW 'news of the day' should be something he can get back to doing with ease, so long as his heart is still in it. If he sees it as beneath him, as a step back, he might struggle to do it. And let's be honest, he's not the sharpest writer on his best day. If the effort isn't there, the site will die quickly.