Thanks for the insight.
I would like to share my personal thoughts..
Aikido is not meant to be compared to other forms of martial art used for self defense. Many has tried to pit Aikido against other MMA fighting i.e. KDTA, CMD, Karate..
The essence of fighting is totally different
The most basic rule of Aikido is establishing the threat and moving away instead of receiving punches /kicks; hence the irimi tenkan and kaiten movement. If you compare this with other "receiving" martial art ..it will involve some blocking; be it kickboxing, CMD, KDTA, karate etc..
Aikido trains someone to avoid conflict. Thats the philosophy built into it ..the way of harmony..
If a student of Aikido expects to be a street fighter upon completing their dan or higher ranks I think he is looking in the wrong place to start with.
katate tori, shomen and yokomen technique were all simulated attacks of the sword..
the hand as explained before is an extension of the sword hence vice versa
No doubt, no one will rush at you with a samurai sword in this century but we have to understand that Aikido was created by Osensei based on aikijiujitsu which is a samurai art widely used when everyone was wielding sword.
They dont jab or kick, they cut !! SO the inherent danger was the sword and not the arms or legs.. so aikijiujitsu protects life...