I got an invitation to go up to the control deck and asked what was wrong with the grass.
She said she thought it might be too rough!
I wonder in this wonderful age of litigation and risk aversion, if this is the tower staff not wishing to accept a non standard landing surface request in case they are liable for any problem.
If this is the case, they are probably hoping the pilot in command will issue a pan or whatever, and then they can be more helpful.