Here is what I am thinking...

1. Would it increase the amount of organic material in the pond due to the leaves from the trees?

2. Would the low slope get choked up with weeds?

3. Would this contribute to stale/stagnant water that would hurt overall water quality?

Somebody will chime in with more knowledge than me shortly.

Water dries, rocks crumble, and trees die. The only thing that is eternal is the reputation we leave behind.
- Ancient Viking Proverb