i can't see the pictures but that's probably because i'm at work and they're blocking them :/
anyway, i'm pretty sure i know which scenes you're talking about. and i think you're right about how tobi escaped the amatersu, it makes perfect sense and i can't believe i didn't put the 2 together earlier haha
about the time/space jutsu being another jutsu from MS... i'm not sure about that. i mean, it's totally possible, don't get me wrong, i won't shoot down anyones' theories... but it's my opinion that sharingons are as unique as the people use have them. maybe it could be that one part of the uchia family are masters of time/space jutsus while other parts are masters of genjutsu. we know that itachi was gifted with genjutsu so i wouldn't be surprised if sasuke has similar strengths. maybe obito's side of the clan was gifted with perception which allowed them to copy any jutsu so since kakashi has obito's eye he can copy jutsus. then if kakashi is doing the same time/space as tobi and tobi is madara then, according to this theory, obito could've been a blood relative of madara and madara maybe be gifted at copying jutsus like kakashi. maybe in the uchiha clan they had many different schools to help their clansmen master the strengths and defend the weaknesses of their sharingan... at least if i was running the family there would've been something like that lol...
then again it might not matter what side of the family you're on. perhaps it's individually unique and not based on what side of the family you come from. this is just a theory mind you.
this begs the question. is the forming of an MS a result of ones environment and experiences (individually unique) and determined by the amount and area of training or is it pre-determined what abilities and strengths MS could be expected to have by birth (side of the clan)?
but i do think that sharingon/MS eyes are as individual as the people who use them rather than all the same and all being capable of the same techniques. so they may all have their own strengths and weaknesses. just my humble opinion. sorry, i really didn't mean to type this much... i've had a lot of coffee this morning