IMHO, if I can deal with a workplace problem by oshi-dashi which expels some combative douche out the nightclub door, I'm not going to much care if it's centuries-old or of recent provenance.
Nor will I care if it's usually practised in a gi or shorts 'n' rashguard.
Its presence or absence in any kata will be entirely inconsequential.
Whether or not it worked on some pro bout on TV will be of no consequence to me.
I will not care if it hails from Brazil, Japan, Japan-via-Brazil, China or Hoboken NJ.
It can have a name coming from Korea, Moscow or Slough, UK.
As long as the asshole I'm dealing with has been shown the door via oshi-dashi, I'm happy to practise it and use it at need.
Ditto the rest of any MA.
But that's just me.