Lol but it is that easy if he has no counters for sai's ability. Only reason he last as long as he did with neji because the latter was close range fighter who lost LoS forcing him to remain on the defense repelling the spiders. Sai simply needs rat mimicry to locate then fly over, shunshin or dig under to his location then get rid of him with beast mimicry. If kido tries to dip then sai will bind him momentarily with the very rats he used to track him. Lol no. Slight adv Intelligence =/= immunity.
You truly make it seem like Sai will be the only one attacking while Kidomaru is just standing still.
No. I made it perfectly clear in the OP that Kidomaru will take this seriously, he'll be pursuing Sai as much as Sai will be pursuing him. The difference being, Kidomaru thrives in this location while Sai is at a hindrance. You say that Kidomaru has no answer to Sai's abilities, but what are Sai's answers to (near) unbreakable webs and insanely accurate projectiles?
Sai is just going to shunshin over and kill him when Neji (who is faster than Sai) couldnt?
By "dig under to his location" Im assuming you mean the mole jutsu? How will he pop out from under him when they're in trees...?
A scan of Sai doing the bolded would be appreciated, pretty sure Sai has no way of binding Kidomaru who swings around like Spiderman.
Slight advantage in intelligence? The entire fight against Neji was strategical brilliance, intelligence feats for Sai would
also be appreciated.