It's not a crime to use a modular for basic synth sounds. After all, that's how the basic sounds got developed in the first place. Crazy modulations are easy, making useful musical sounds is a lot harder.
If I was choosing between Arturia's Mini and Modular I would take the Modular, it comes with plenty of useful presets you can use as is or as a starting point for your own tweaks but down the road if/when you're ready to dig in there's much more potential for sound design than the Mini.
Be forewarned that Arturia's synths tend to be real CPU hogs, when they state minimum requirements those are bare minimums!
I listened to Hatfield and the North at Rainbow. They were very wonderful and they made my heart a prisoner.