Ok, look at it like this, most forms of classical jujutsu only included empty hand fighting as PART of the currculum.
(another part is wide range of striking and kicking skills)
The other parts would have been the use of varity of weapons, and defense vs weapons--neither of which is GENERALLY considered at all in "sport" judo or sport MMA.
Kinda gives a whole new meaning to "dangerous" techniques.
So, would you care to match with me?
Me using my knife, which my ryu teachs me to use--and you get to use your empty hands, which is what "sport" judo and the vast majority of MMA schools teach.
But that should be no problem for a person that has trained vs a "fully resistant" oppt--right
All kidding aside, all arts have their weakness, if you look a the history of judo you will find that Kano also seems to have elimnated stikeing and kicking from his art--in point of fact the early judo guys DID train in such, its just that since matchs did not allow them to use such training, it kinda fell away from the main stream.
Kinda funny when you think about it--both English "Boxing" and Japanese Judo served a the basis for modern MMA matchs--but BOTH, had over the years taken an art that USED to have exactly the skills needed for MMA matchs, the skills were lost over time, then had to be REINTRODUCED in order to have MMA matchs.
I guess everything old really is new again.