To reply at length:
I agree completely that Joja should be cheaper, have a wider variety of seeds available, be open ridiculously late -- and even, if possible, during festivals. Going the Joja route should also wreck Stardew Valley.
Let's face it: SDV is *not* a "difficult" game. There's no real time-limit, getting KO-ed in the mines doesn't really carry any penalty, there's no victory condition to meet. Do what you want, how you want, at your own pace.
And yet, there are *scads* of guides to maximize yield, efficiently plant your crops, to finish the CC in a year.
Why?
Because that's how we're wired. We love to tinker; I figured out the optimal layout for the cellar myself, because it was a fun puzzle. Ditto for sprinklers, etc. "How much can I get? How can I have the maximally efficient layout? The most beautiful farm?"
And then I find myself stressing over how to get my field hoed and watered and planted when the season changes.
Joja is the Way of Efficiency and Profit. The Community Center is the Way of Connection and Restraint. If you want to min-max your farm, Joja should be the CLEAR choice, with advantages that help you do that. If you want to grow Pelican Town in a way that supports the community, that is satisfied with "enough" rather than "the most I can get", the CC should help you with that.
Pierre and Family should HATE you if you support Joja. Irrevocably. Villagers forced to work for Joja should stay glum, should be dissatisfied with their lives. You should be able to have a super-productive, profitable farm, based on economy of scale, if you choose one; you should have a nice, financially stable farm -- not wildly wealth-creating, but comfortable -- and good relations with your neighbors if you choose the other.
I tell my kids that the real danger in the Dark Side of the Force is not (in my mind) that it somehow mystically corrupts you, but rather that it's just too easy. If you can wave your hand and make someone do what you want, that's terribly seductive. Why bother *convincing* people, when you can have 100% success in a fraction of the time by simply mind-bending them into doing what you want? Pretty soon, you wind up using the Force to do everything, because it's self-gratifying and oh-so-easy. Joja should be just like that. A quick hit of dopamine for your success... and before you know it, your "success" has left you somewhere you may not have wanted to go.
Stardew Valley clearly sets up the conflict inherent in civilization: by making changes to the world that we think are convenient, or efficient, or that help us "get ahead", we put ourselves on a collision course with nature. Sure, farming lets you accumulate wealth and build "advanced" societies... but hunters and gatherers often worked as few as four hours a day, getting food, making tools and shelter. Linus doesn't slave anywhere near as hard as the player does, but he gets along just fine.
Take the leap, Devs! Make Joja and the Community Center actual choices that have distinct benefits and penalties. Let the player decide how easy they want farming to be, and how hard they want it to be to belong to the Pelican Town community.