OpenStreetMap is a geospatial database, how things are rendered are up to those who consume that data. The rendering shown on openstreetmap.org is just an example rendering designed for mapper feedback. We don't change tags or delete objects based on how they show on one specific rendering.

If these are seasonal, there is the seasonal tag used to show this, which might change how other data consumers then show those objects, and that's how these issues should be corrected, not just deleting them. 

You say you've "fixed the map", but at this stage, I don't think I'd agree based on your comments. If these wetlands don't exist at all, that's fine, but you'd need to say that, and if someone queries the removal, engage in good faith.

I've had a look at aerial imagery, and these areas do look like they resemble wetlands, so this might need to be reverted, and then tagged more appropriately.

On the topic of incorrect street names, the great thing is that you can just come on here and change it! You don't need to ask Google and hope they get it right eventually, you can do it yourself.