I didn't find the sale ideal either. There are much better ways (at least in Germany) to increase the return and reduce the tax burden. But well, it's already done.
@Dividenden-Sammler I have an asset managing limited liability company as a subsidiary of my dual holding company. But no, this is not better than tax-free 800k. It's even rather lousy, because when you take it out, you get taxed again. So you have the money on the final level, private and tax free.... It doesn't get any better than that.