Why would you describe this as ‘interesting’? What a bizarre choice of words for news which is potentially hugely problematic and distressing for lots of people.
Also - it’s a bullshit daily fail article. Just because some vaccines have specific limitations on their efficacy does not mean the same will necessarily be true of the Covid vaccine which doesn’t actually exist yet. It’s just hysterical speculation designed to throw even more abuse in the direction of overweight people at a time which is already scary for them.