Personally I don't think it looks bad, but for a 2D side-scrolling action-platformer it's not at the top of the stack in pushing visuals or visual fidelity. A game like Replaced, for example, has a more impressive visual style on a technical and (IMO) subjective/artistic level, but that doesn't mean Metroid Dread suddenly looks bad.
At the very least it should be a pretty fun game and that's ultimately what matters.
I was surprised with the people praising the hell of the Metroid video during E3. I didn't see anything special about the game, looked average at best. People tend to over-hype the hell of Nintendo games.
I was also surprised by the people claiming that Nintendo had the best show at E3. * facepalm *
Yeah this part was...something, to say the least xD. If not for Microsoft, Nintendo'd of easily had the best show. Lots of fun-looking games including some new installments in series that hadn't had something new in a while.
My issue is, virtually every game was either a sequel or remake. Zero new IP. And, outside of arguably BOTW2, zero games that felt like they were visually pushing things forward on a technical or artistic level. Not to mention, while everything there more or less looked fun (some games especially), nothing seemed like it was shaking things up from a gameplay POV or novel use of hardware features or new (to gaming) tech.
I can blame some of that on the nature of the Switch and its technical limitations, but others I can't. I'm not gonna give Nintendo a pass just because they're Nintendo. Meanwhile we got a ton of new IP from Microsoft's conference and some really visually impressive stuff shown off, and some games shown looking like they'll have some interesting spins on gameplay.
From a well-reasoned POV Nintendo's show was good but not the best.