No, the Gacha mechanics are part of the lore.
The church of Indol holds a monopoly on the distribution of Core Crystals. The scarcity of Rare Blades is tightly controlled because the Praetor, Amalthus, intentionally interferes with the Core Crystals' natural development to assert his own power.
Xenoblade Chronicles 2 Switch 2 Edition screenshots!
60 FPS at 4k Resolution is nice, but what Xenoblade Chronicles 2 really needs is an update to the gacha mechanics.
Every rare blade should be available for in-game purchase. I hope that's something they implement.