Madara taking a one-year nap? Rins death activated Obito's MS for sure coupled with Hashi's chakra, the blindness side-effect was subdued greatly.
About his timely recovery, This is Hashi's dna we're talking about. Dude was so rich in vitality, he is instantly healed when injured. As if that's not enough, he is able to create a life form out of chakra alone. I have absolutely no doubt that the same dna now forming half of Obito's body would 'vitalise' and heal him completely in the stipulated time.
Same with skills. Hashi controls bijuu, and with his SG would be able to control Kurama with ease. All he did against Minato was phase, phase, warp, warp and when he got tagged, had to run.
Obito-in-Zetsu covers the height part leaving one vital aspect, Change in Personality. No matter how hard I think about it, it's just not enough to try to destroy Konoha just cos of baby crash on a girl who died in battle. They are ninjas for crying out loud. And MEP, come on.
HELL IS REAL
Jesus Loves You!!! He Always Has. He Always WIll