“Most strikingly, they showed that fusion is 1 billion times more likely to occur between a muonic pair of tritium atoms – a form of hydrogen containing two extra neutrons in its nucleus “
If it has two extra neutrons, it is not tritium.
What is a muonic pair?
Are you denying the existence of muon-catalyzed fusion? If someone finds a way to generate cheap and plentiful muons, this could be the pathway to affordable fusion.