Metal Gear is great. There's nothing wrong with Konami being all about metal gear right now.
Yes, there is. That story is not made to be a sequel-churning cash cow, and that's probably what they're gonna try and do with it.
There are only so many games you can make about Big Boss. There were only so many to make about Solid. Same for Raiden. The only thing they could really do that would still work would either be origin games for Solidus and Liquid (which I wouldn't play tbh, since we know neither of them really did any super sneaky stuff by comparison), or making the Normandy game featuring The Boss and Cobras.
Aside from that, it's not a series that can be milked and milked and milked, because doing that makes it lose its punch and become oversaturated. And if Konami's pulling a Capcom-with-SF, milking is exactly what they're going to do.
Bear in mind this is coming from someone who owns every game in the series and could probably win a trivia contest on the shit, so I'm not just pulling this out of my ass.
Being tunnel-visioned on a series with a over a dozen games already in it is absolutely a bad thing, what kind of statement is that? When you are a company with thirty years of variety and several well-known and beloved franchise names attached to you, it's up to you to keep those big-name series alive and plan new releases in a balanced manner. Konami clearly has not been doing this. Sure, the fandom will always find ways to get fanworks out there to keep interest afloat a bit longer, within their own communities, but really that only goes so far.
Konami's shooting themselves in the foot worse than they ever have the last few months. Don't sit there and seriously say single-series obssession
with a series with a dozen plus entries already isn't a bad thing. Because it is. They knew Silent Hills would have made them a lot of money and opened the door to kickstarting Silent Hill. They knew Kojima is beloved by most of the gaming world and bad shit still went down (though due to lack of information Kojima could have started it, I'm guessing here). They knew the backlash from the first Lords, and greenlit two of the worst sequels I think I've seen in any series. They knew that having a name like del Toro on one of their games would get news of it spread like wildfire, as well as open the market up a little bit more, and still shut it down.
Konami's apparent obssession with Metal Gear is, for the third time, going the route of how Capcom treated Street Fighter and Versus for a while. It's not a good route to take, period.