He doesn't have Uchiha blood so even if has the eyes he cannot awaken MS.
Now there is a possibility that out of all those eyes Obito had one of them was an MS eye.
I think the scans you provided tells you about the sharingan but doesn't say anything about MS, Obito awakened the sharingan with his special uchiha chakra from brain and he gave it to Kakashi, but once that's done(activation) maybe the rest(MS awakening) is a different story motivated by the individual's feelings/situation in which they awaken it because when you think about it all sharingans have the same pattern so it's logical to think they had same cause of origin(uchiha chakra) but MS got it's own unique ones depending on like I said feelings/situation(less specific to uchiha and more about humans in general-or in this case shinobi).
Basically Uchiha chakra=kickstarts
Regular strong human feelings= triggers the rest.
Going from Normal eye to MS that is.
Also when you say Obito awaken it first do you mean it had something to do with his(Obito's) chakra? It's not like his chakra went from his brain to Kakashi's or his eye was still connected to him- because in that case I am sure he would feel some sort of connection/have the control of the eye but I seriously doubt it so I am going with the former and say uchiha chakra only kickstarts it. Not to mention oro shin was
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so uchiha DNA? that's how he gets sharingan and gets to MS like I said above but these are just speculations.
EDit: It could be possible(like you said) that Obito's stack had a MS eye since someone might have awakened it on seeing Itachi/Obito kill their comrade or something.