They don't look that bad.
Sure neither was the 286 and the 486SX, can't forget about the cyrix M1&2
Larger, hotter, and slower than what they replaced while providing almost no competition at all. AMD not only harmed it's self but also it's customers that depended on AMD to make a better product. Sure they can polish off a few things but no more than 10-15% max per clock per module over BD.