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>Dark Void being made Darkrai-exclusive, and STILL getting accuracy nerfed to a 50/50
>Talonflame getting shit on
>Parental Bond going from 50% on the second attack to 25%
>Gengar losing Levitate for Disable
>Aegislash getting an actual BASE STAT REDUCTION from 150 to 140, alongside king's shield getting gutted
Tauros was just an unfortunate casualty of the shifting metagame, between powercreep and new mechanics being added, and actually got a lot of new toys to play with every generation.
All of the above Pokemon were specifically nerfed because Gamefreak hates them.