Similar to what Cuban drummers did decades ago, Tony was 'transposing' various different 'native' percussion instrument parts on the drum kit. Lower pitched instrument parts he played on the bass drum and higher pitched parts on the snare and high hat. To an extent, he approximated traditional Yoruban (a major ethnic group in Nigeria) rhythms on the drum kit which is why his vocabulary is very different to what we in the West are used to.
Like I mentioned before, this kind of parallels what Cuban and Brazilian drummers did in say the 50s/60s when they replicated patterns traditionally played by more than one instrument..... but using a drum kit. Also, Yoruban culture is and integral part of Afro Cuban, and to a lesser extent, Afro Brazilian culture.
Also, growing up in an age where information was not as easily sourced as today, meant that (possibly?) drummers were more original prior to the VHS, music book, and now internet age of today. Perhaps a Tony Allen is less likely to emerge today as the average Nigerian drummer will be just as tapped into the modern drumming world as anyone else!
Finally, to a degree I believe that you are only as good as the music you play. Tony played on songs that resonated throughout Africa and beyond. Furthermore, as humans don't seem to learn from past mistakes, Fela's message is still as relevant today as it was in the 70 and 80s. You can have all the technique in the world but it's the music that really counts!