Why would you feel any different if EAD Tokyo did it?
Because this is their style of game, you know? They already made Jungle Beat and the Mario Galaxy games. I expect EAD to make games like this. Although I would like them to try some new stuff (I loved Pikmin), this is their unique style.
I like it when a company has a specific feel and style to them. Intelligent Systems for example never really makes games that feel like EAD's. Paper Mario, Fire Emblem and Advance Wars are quite different. It all still feels like Nintendo but you can tell who did what game. IS and EAD are both Nintendo but compliment each other by being different. HAL is also different. SSB by EAD wouldn't be the same. In the Metroid Prime games Retro demonstrated that they also have a distinct style. You could not imagine any other team making those games.
I don't like it when companies that are not EAD are assigned games that look and feel like EAD games. Often when Nintendo has another dev work on some Mario spinoff it doesn't feel like it's that dev's unique take. It feels like they're being codemonkeys for EAD. They don't provide more variety but just more of what EAD would make if they had more time.
Rare had a unique style which I really enjoyed during their time with Nintendo. Silicon Knights demonstrated a unique style with Eternal Darkness. I like getting that Nintendo quality but with the uniqueness and creativity of the different developer involved. Nintendo works very well as a general manager. I never liked NST because they seemed generic. I was mad when SK worked on MGS because, while that was really good and all, it felt like a Kojima game. SK's involvement was not noticable.
This looks too much like EAD forcing their style on Retro. It doesn't look like Retro's involvement will shine though. It looks like a mix of EAD's Jungle Beat and Rare's DKC.
Metroid: Other M has attracted controversy but, no doubt, that's not EAD or IS making that game. For better or worse that reaks of Team Ninja. This should reak of Retro.