Today I saw lots of carp on the surface where the water is 6'-12' deep where the weeds are almost on the surface.
I think angler input was one of the reasons the carp were introduced. It certainly is better than chemicals to control the growth/spread.
The many years before the vegetation arrived, the fishing was great, it is/was great with the vegetaton, and it will be after some of it is gone. I've been fishing there since Jan 1989 and the vegetation just created another pattern. My catch rate this year is pretty much the same as it has been since the mid 1990's. I caught 66 bass today.