It is only paywalled if you let your browser run the javascript served from the site. Blocking all the JS with NoScript results in being able to read the article with no paywall.
In Chrome, you can also do per-site Javascript blocking. Blocking Javascript from [*.]bloomberg.com in preferences will let you read Bloomberg without problems.
They will get wise to this eventually and start loading their articles using javascript. Business Insider already loads their images with javascript.