It's not keeping future liabilities off balance sheet. It's marking them at their current value. Same thing for assets. Nobody wants to see a balance sheet where 30 year government bonds are written down at the sum of all interest payments to be received plus the principal. If you did that, you'd have balance sheets jumping all around the place as companies just managed cash on a day to day basis.

The vast majority of the article is trash. It's wrong in many situations. The only reason the accounting issue was brought up is it's early, and so incredibly stupid that it renders the rest of the thing untrustworthy. The rest is bad. If you don't think so, you don't know the subject and are learning from bad sources.