From the accident report:
A technician then entered the cockpit and pulled out the emergency gear extension control, and all three wheels came down and locked.
Wheels down and locked - plus "Three Greens"?
I think that they are sensible. Good checklists, especially emergency checklists, should be available, but that does not mandate their use.
You really need more practice thinking like an EASA bureaucrat, Timothy.
Ensure that rules are prepared in respect of the minimum requirements for the content of checklists for aircraft operated within EASA’s supervision (RL 2010:06e R4).
This will be used to mandate checklists as part of the airworthiness of the aircraft. No checklist, no fly. Changing the checklist? Major mod, send cheque.
Ensure that, in connection with e.g. the ARC review that existing checklists and emergency checklists are in accordance with AFM and found in a legible condition (RL 2010:06e R5).
Want to add items to your own checklist? No, sorry, if it doesn't have it in the AFM it can't go on the checklist.
Work towards that training of emergency procedures for aircraft with retractable landing gear is introduced at Proficiency Checks regarding private aviation (RL 2010:06e R6).
And that means a new mandatory item to demonstrate the emergency procedure at every proficiency check (and training flight for SEP reval).
Sorry if that sounds cynical, but you if you haven't been in the room...
This will be used to mandate checklists as part of the airworthiness of the aircraft. No checklist, no fly. Changing the checklist? Major mod, send cheque.
But that's outrageous and totally unrealistic.
For new aircraft, the mfg will have to issue a checklist which forms a part of the Type Certificate. That's easy.
(They will have some fun with stuff like factory options, which will result in a checklist with variable sections, which will be supplied in a form not usable in the cockpit; a Socata speciality).
But there are almost no aircraft being made today.
So all the ones currently flying will be illegal 
It also means any mods will be Major Mods. The whole Minor Mod concession is wiped out - for mods that have any functionality visible to the pilot. Forget the installation of a simple IFR GPS in a non autopilot aircraft...
The more I see of EASA the more I see a bunch of ex EASA Part 21 codgers who relocated to Cologne (or maybe didn't relocate far since most of them are Germans ) and are pushing the same "business support" agenda as they did in their previous job.
