I think it's about time for a solo story-based option for operations. It could be done in a way similar to how Temple of Sacrifice was handled. Some of the operations are loosely linked and another directly linked. It's interesting story that some players won't experience because of solo play.
I don't think it is as easy as just "group up and play." The last year, half year maybe all that showed up in chat was LFG TC every day. No problem, people enjoy that but varying operation opportunities don't show up often enough. Also, if you get into a guild that raids regularly, then you're going to have to up your game to progression raiding and not everyone is into that. Progression raiders, if they're chill, may "carry" a person through a SM operation but it really just depends on luck imo.
I just think that an MMO that prides itself on having good strong stories should consider this and then make this happen. So, I agree with making this idea: Make the "operation stories" completable by solo players. Make Macro-binoculars, Dread Seed completable by solo players ... and Collocoid War Games completable by solo players.