How is this different from all the other claims of an antibiotic that can deal with MRSA? (Yeah, before sharing this link, I did a quick Google search and skim

How is this different from all the other claims of an antibiotic that can deal with MRSA? (Yeah, before sharing this link, I did a quick Google search and skimmed the results and there were claims back to 2014 that various parties have "cracked the superbug".)