Author of the post reporting for duty!

That was written before TCG Opal arrived and greatly improved the situation. In any case, the post turned out to be a meeting point for SSD full disk encryption fans, so there's a whole lot of great discussion in the comments.

I did write a follow-up post in 2015 on getting TCG Opal working with your SSD using the open source MSED: https://vxlabs.com/2015/02/11/use-the-hardware-based-full-di...

(the author of MSED was super-helpful in the comments, which turned out to be an informal kind of msed helpdesk)