No the loopholes is that if the LLC donates the appreciated shares to charity it will get a deduction of the fair market value. However if a tax-exempt entity (Charity) then sells the stock it does not pay capital gains.
If any of the shares the LLC holds are liquidated by the LLC or granted to for-profits, situations where the "other reasons to create the LLC" are in effect, capital gains tax WILL be owed.
The LLC is as if he held the shares personally, when it comes to capital gains.
The estate situation is very different, not cut and dry, and that's what is being discussed in this article.