Aikido is a subtle mix of several disciplines. Ju Jitsu to Jiu Jitsu is a hybrid of Kodokan Judo that evolved (somewhat) concurrently with Aikido but removed from the preempts of the Kodokan (temple/building).
In the 20th century the exportation of Ju Jitsu/Jiu Jitsu and Judo to west was Jiu-Do. Finally coming to rest In Brazil via Maeda, substantiated by Carlos Gracie and proliferated/polished by 'God' aka Helio Gracie.
In modern speak (eg; internet) Japanese Ju Jitsu/Jiu Jitsu is denoted as JJJ whereas The Brazilian lineage is (obviously) BJJ. They are two very different disciplines only held together by a faint, shared lineage. Hope that helps.
That video (as fake as I believe it to be) is JJJ.