But Hashi cant stop Minato from Teleporting. Even if he uses a wood clone Minato blitzes Hashirama tries to bind he Teleports away. Not to mention Minato has clones aswell.
Actually, he can. Hashirama's Mokuton is capable of absorbing chakra as it is basically a mini-Shinju. And Minato stated himself when the Shinju first broke out that he would not be able to utilize his Hiraishin with the wood branches leeching up his chakra. With his chakra being directly disturbed, and seeing as Hiraishin needs proper chakra control for it to transport an object through space to a mark's location, Minato actually would be unable to teleport.
And apparently people in the past seem to loose to modern people on the battlefield. I mean look at the whole war arc. All the edos lost plus Kaguya. Don't forget Minato faught a war basically by himself taking forces with ftg and other unknown methods.
As if those "past people" were anywhere near as war veterans as Tobirama, Hashirama, and Madara were. Those three literally spent decades of their lives fighting in war zones on a regular basis. This was back in the First Shinobi World War which is stated to be the most chaotic time of the Shinobi Era. Plus if past people lost to modern people, it'd be because modern people >>>>>> past people in numbers. We're looking at about a dozen Edos vs. 100,000 shinobi? Clear diversity disadvantage there.
All Minato did was kill a batallion of fodders who had no knowledge on Minato's abilities, with the help of his squadmates to throw the kunai. Sandaime Raikage did better by smashing his way through 10,000 shinobi over a period of three days. Nidaime Mizukage also solo'ed hundreds of shinobi in a very short timespan with his genjutsu. Pretty much proves that taking out armies of ninja is a standard high Kage-level feat. It's not like Hashirama is incapable of taking out more ninja than any of the other three did. This is the same guy who fought his equal for an entire 24-hour day while destroying terrains and still came out as the victor.
Also can't Minato sense wood clones with Sage Mode. I forgot if Sage Mode allows you to.
Sensing doesn't help him. Not even Madara who is an adept sensor back when he was alive could distinguish the wood clone from the real one.
Also, I think i'd take back Minato BFR'ing Hashirama's giant Mokuton techs. Minato was able to accomplish that as an Edo, who have infinite chakra. Doesn't work out so well if he's alive.