The following is quoted from the FA regarding possible sanctions for breach of rule E3.1
Sporting sanctions: Suspension from matches (length varies by level and seriousness — e.g., low: 0–2 matches, mid: 1–3 matches, high: 3–6 matches in the National League System)
No mention of lengthy bans so this surely implies they'd be on dodgy ground if they hit Eckert with anything more than a 6 match ban unless they consider his offence was well above high level of seriousness.