Y'know, speaking as someone who hasn't touched the game yet (I've been busy with Pokemon), I can KIND of see what Nintendo's trying to do, here.
Because, let's face it, Metroid has always kind of been a odd duck for Nintendo. It's the closest thing Nintendo has to a "horror" franchise. And Nintendo doesn't really DO horror games, because of it's family-friendly image.
(*Eternal Darkness peaks it's head around the door, wishing someone would remember it...then goes back to listening to Taking Back Sunday*)
(*Famicom Detective Club just sighs and goes back to reading*)
But, Samus IS a iconic part of Nintendo. She's been in every Smash Bros game. Metroid games may not always sell the best, but Samus is up there as one of the icons, regardless.
So, I can kind of understand what Nintendo's trying to do. Nintendo is trying to make Metroid more in line with it's other properties. Less "scary" and more "adventurous". I can see this as Nintendo trying to slowly push Metroid into a tone that's more like Zelda. Or Guardians of the Galaxy, more broadly speaking. Where you can still have creepy MOMENTS, but the entire game isn't really as intimidating as it sometimes is. And having a cast of quirky characters is a part of that. Zelda has it's share of quirky weirdos, too.
And this isn't even the first game to introduce more recurring characters for Samus to interact with. This is something they've been fairly consistently trying to do for the last few decades. Other M. Metroid Prime Hunters. It just never really works. And it doesn't seem to be working here, from everything I've heard.
But, I don't think Nintendo's going to stop going in this direction with Metroid. Nintendo seems to really want to give Samus a cast of characters to interact with. And Metroid is really the only Nintendo franchise that lacks that memorable cast of characters. So, in future games, I think they're going to continue to move away from being inspired by "Aliens" and probably going to try to make the franchise more like "Star Wars". Because something along those lines is just more what Nintendo is comfortable with.
The motorcycle getting put in here kind of supports this idea. A character on a motorcycle says more "cool action", rather than "survival horror" to me. I feel like the motorcycle represents Nintendo desperately trying to change the tone of this game. Plus...it DOES make for a cool toy. Which certainly doesn't hurt when they're trying to sell Amiibo.
Plus, I think they might think that might make these games sell a little better? Metroid is probably, overall, one of the lower-selling "big" franchises that Nintendo has. So, maybe they think making it less "scary" will help more people try it out? I'm not sure if that logic actually tracks, given how popular the Resident Evil games are. But, I could see Nintendo thinking that it doesn't work for them, at least. The audience that they've cultivated is less interested in a game like Metroid, rather than a game like Zelda. So, I could see Nintendo trying to make Metroid more like Zelda, in a attempt to boost sales.
So, I don't think THESE guys will end up sticking around in future games. But, I feel like this is something Nintendo's going to try again with Metroid in the future. They're going to try and force Samus to socialize more. Hopefully, they just do it better? Maybe the key is to give Samus a supporting cast who are all "mute" like she is? That way we can WATCH them discover these worlds alongside us...but they aren't constantly chattering in our ear the whole time. Make it more about the animation than the dialogue? I don't know, just a thought.