People are overreacting to build nerfs like they’ve never seen an ARPG before.
It’s honestly surprising to see people reacting to build nerfs like it’s some brand-new concept. In this genre, it’s completely natural for OP builds to get nerfed every season.
Especially with the Barbarian build in D4 this season—a build that basically makes you invincible was never going to survive. In a game like this, providing god-mode without any real trade-off is practically a "cheat" performance-wise. Sure, the fact that such a build was even possible is a flaw in their itemization design, but what game doesn't make mistakes? Balance patches exist specifically to fix those errors. And to be fair, they didn’t gut the build mid-season; they only pushed bug fixes and waited for the seasonal reset.
Other ARPGs are no different. Look at any game that just started a new season today—the most popular meta builds from the previous season always get nerfed to the point of being unusable. At least in this patch, they specifically targeted the "invincibility" of the Barbarian; the DPS for the Whirlwind build itself hasn't even been touched that significantly.