You are right, zero zero takeoffs are not that difficult once practiced and current (especially in such a capable aircraft) but if you make a habit of doing such maneouveres you stand a good chance of getting caught out one day.
The question is WHY? Why would you do such a take off in poor conditions. We all know the answers as to why and listening to pricks like the bloke on the Jeremy Vine show it's surprising these accidents are not more common.
Shy. Would you complete a take off at night in thick fog from a private site without being shot at?