I've been told LLL is getting better growth-wise b/c all of these 7,8 and 9 year olds are constantly told how "good" they are, so they think they can easily make Williamsport in the 11-12 year old division.
Apparently LLL got smart and said "no more" to parents showing up and having their kid only play 11 & 12 year old division, then bolting again.