I keep pondering on this myself and my conclusion always is: they'll surely have to be consistent and treat him the same as Bielsa, where their actions are/were the same.... BUT.... if Eckert did more 'bad stuff' than Bielsa did (e.g. bullying) then that could/should give the FA reason to treat him differently to Bielsa (assuming Bielsa was never accused of bullying?). The EFL rules are there to sanction clubs, not individuals, ergo the FA shouldn't be taking into account what club rules were broken when dealing with an individual. They should just be concentrating on the severity of the acts carried out, and judge that against their own 'code of conduct' rulebook.
Anyway, I'm probably sounding like a scratched record on this now so will quit going on about it!