Not really. EOTL and LMS are relatively similar in terms of difficulty, with EOTL probably being a tad bit harder to reach. They are not easy by any means, but games like LOTR and TSPP are more difficult to reach as they require a myriad of complex goals to qualify.
If you focus on Barn, CDC and the Well Walker, there's always a relatively safe zombie kill available. Just ignore Riot, Tunnel and Arena unless lit for multikill. You don't have to shoot the drop targets at all.
LMS, while difficult to reach, is not really in the same ballpark as WPT, TSPP, LOTR, WOZ, ACDC, DI, IMDN (maybe BBH?) and other notoriously difficult to reach final wizard modes.
Disclaimer: I am ranked in the top 300 and have been to LMS and Encore, but none of the others listed (yet!)