Conceptualize that now-considered simple appartus surrounded by high pressure oil to equalize extremely high pressures on all sides, imagine the design to seal it. 100,000 atomspheres! Not an easy thing to do at sizes bigger than the angel's dance hall.
I think you're confusing two things here, guy: Bridgman's apparatus for attaining very high pressures, and his crystal growing apparatus.
Yes, he was a fine physicist. But just because he sometimes had to go to considerable experimental lengths to grow crystals, does not mean crystals in general are designed. I grow huge ones in my lab, often by slow evaporation. Other huge ones grow naturally.