On the plus side, it does/did give a topic for discussion this subforum.Since we're all obsessed and follow good automotive maintenance doesn't matter nitrile, aem or silicone will last longer than our sanity.
Also, the topic and distinction/difference of ACD AEM material must have been important enough to you, to start a thread about it. ¯\_(ツ)_/¯
As for silicone adbv OFs, used many of them, some for extended 2 ocis. Most no ribs (not sure of significance to that) in 7317 application (Napa Gold/(Wix), Purolator/Bosch), never an issue. Napa Gold 1348 had back side ribs, but it's a larger filter. The filter manufacturers consistently use silicone adbvs on their extended oci OFs. One could infer from that, the advantages far outweigh the disadvantages, if any.