I think you misunderstood. Yes, Minecraft is a really unique and addictive game. That's not a formula that can easily be replicated my indie studios, whereas the Cave Story model of success is one that can be more easily replicated by indie studios. That is why Minecraft can't say "just do as we did" because what they did is very rare and most indie studios won't be developing the next worldwide phenomenon.
As far as the classical indie model of single-man project developed really quickly, Minecraft is precisely that. And of all the examples of that, it was by far the most successful.
As far as influence and a source of inspiration or aspiration for other indie devs, it's clearly
by far the most influential. If you're giving extra credit for being early, then Dwarf Fortress probably takes home the cake, but the direct influences of Minecraft on indie studios are incredibly clear: sandbox, exploration, procedural generation, rogue-like elements etc. Some of those it got very clearly from Dwarf Fortress, but I think the way in which they are so hugely influential even today is via Minecraft directly, and only via Dwarf Fortress insofar as it goes through Minecraft.
You have the more overt influences, from studios like Re-Logic or Klei basically making their own versions of Minecraft (and experiencing enormous, repeatable success, I might add), but even something more technical, like the idea of Minecraft being coded in a high-level language like Java that a single coder could easily hack together, are all extremely influential on how indies are made today.
Even Minecraft's paid alpha release was a sort of forbearer to the concept of "early access" that dominates indie, and even outside indie, today (again, it got that mainly from Dwarf Fortress, although it turned the donation model into a mandatory one).
I think even the fact that it also wasn't just another 2D platformer was also a
huge deal for influence on indies and proving that not every indie game needs to be a 2D platformer for it to be developed by a one-man team and be well received.
And still over a decade later, it's by far the most
currently influential game, period, on modern indie games developers. I mean, the talk of the indie world at this very second is
Teardown, which definitely falls on the more
overt influences side of things.
Not only
can indie developers look to Minecraft for replicatable, realistic models of success, they very clearly do and have been for over a decade, and do so looking at Minecraft
by far more than any other title.