Great article here outlying a moment of key innovative evolution in the sport. Also helps cool the jets of the "carbon fiber voodoo" crew as carbon fiber plates in road footwear have existed for the last 25+ years.
However there are of course some differences and important ones.
1) Even though these plates were curved/rockered it was far less extreme compared to the 20+ degrees of rocker Nike used in the OG 4% shoe. Couple of reasons for this - firstly, the greater the rocker the greater the volume of the midsole you need to house it in and secondly, they may simply have not understood/undervalued the advantage of the plate curvature with respect to center of gravity/gait advantages.
2) Tying in with the first point and the volume of the midsole, EVA was still the industry standard midsole material at this time with nothing else really seen as suitable. Even if the plate was curved the midsole would have had to grow to twice what it was and it was made of relatively heavy EVA - so all of sudden you have a carbon plated shoe with a rocker but a 300g shoe because 24mm-34mm of EVA is pretty heavy and clunky. Ground force maximization through firmer materials (like EVA) and lower profiles were still prioritized in this era of product.
Either way cool little article/history refresher.