As i stated in another thread /about the forms/:
"katas" contemporary are train for ranks only and this is the reason that they don`t have meaning in real
but
they was designed by J.Kano to teach/show judo principle which are the same as in TCMA / without digiin` into Ki/qi staff/
so
they value depends from one approche
in vid. posted by John we can see red and white belt what is quite hig /over 5th degree "black" belt/
katas from kneeling position are echoes traditional ju jitsu
and are in "standard" for 4th degree
to answer directy thread q.:
judo don`t have a strike and weapon training
but
katas shows possibilitys and it up to you where you go with your judo when you got level where judo is really yours