Just have to add another thing in how Kishi screwed Minato.
I was initially under the impression that Minato invented all his techniques. That he studied Uzumaki seals and TBB and by that invented FTG, RDS and rasengan, among many.
But Kishi had to hype Tobirama since we knew nothing about him except that his water techniques were good, and that he was a sensor. So suddenly he was a teleporter as well. And not just a teleporter, he used the same damn technique as Minato, and invented it. Thank you Kishi, thank you.
Would it be so hard to just make up a new cool jutsu for Tobirama instead?