But you're trying to unlock all three Guardian fighters at once!
Sorry to cut the quote short. In a general sense, I agree. HOWEVER...
- even unlocking 1 fighter requires a significant amount of Epsilon data packages - that's pure, frustrating RNG grind right there, all other things excluded
- because the ruins are not that close to begin with, people WILL want to "get it over with" - admittedly, I'm one of those people and this IS putting oneself, willingly, into a "grind"...
Ultimately, here's the thing - if an objective requires performing a unique activity, then it is not grindy... but if an objective requires extreme repetition of an activity, then it IS grind; pure and simple. And a LOT of activities, even very minor ones, in ED require repetition. One can argue if a specific activity is unique or not, but that's not really the point.
And don't get me wrong; I LIKE ED! It's a gorgeous game and can be a LOT of fun. Plus, even grind can be fun (it tends to be relaxing for some people; I myself enjoy the occasional cargo run or spending some time almost mindlessly blowing up pirates in a HazREZ). But every so often I feel like the developers forget that the time players have to play the game is finite and that OTHER games exist as well.
To put this into perspective... if ED were a good single-player game (and I'm excluding some recent SP games with deliberately grindy mechanics implemented solely to sell "XP boosters" or other micro-transaction nonsense) then to get a good faction rank one would likely need to perform various, unique and ever more difficult missions for the Imperial / Federation (a few per rank, not more). The Elite rank in exploration would be from solving some deep mystery, with clues scattered around the galaxy (albeit a good SP game would probably also have the actual exploration aspect a bit more... interesting, but this is very high-level concept work here). Getting an Elite rank in combat would have you take down some kind of evil pirate faction or overthrowing one of the "good" factions (if you're a more evil type), by completing ever more difficult tasks to undermine and weaken the faction, before finally taking down their leader(s). But in ED all of these are basically "repeat X times activity Y" which probably stems from the willingness to use procedural generation for as many things as possible, which necessitates repetition.
Again, ED can still be a lot of fun, but the general mechanics are almost exclusively governed by repetition. There's only so much you can blame on the player when the entire game is based around such mechanics.