No, waaaay much more is done with Kotoamatsukami, not to mention it also causes the loss of sharigan usage for a period of time (depending on whether you have Senju DNA or not) that in SL time-span is usually forever.
And justbecuase there are more sharingan, Koto is a greater threat of actually being used on SL. xD
PS:
I take some of that strenght back. If someone did with Yamanaka techniques what I've done with shadow imitation techniques, they could do very much so the same thing and even more.
PSPS:
Also, you have to take into account alot of fights are 1v1 on SL; alot of the canon and anime-only specialties work best when there is a group effort of some sort. The sharingan is just easier to solo with imo.