While some might see the new chipset requirement for TR3 parts as not unlike what sIntel has been doing, the number of feature improvements are, IMO, genuinely impressive. With the features in the new chipset, beasts of computing are brought to the general public - though arguably at a price. A researcher, as only one example, could possibly build a desktop HPC platform with multiple GPUs, etc., and no shortage of PCI-e lanes.According to Lisa Su herself in the interview, Zen3 has already been finished and just for 7nm+ EUV manufacturering. Its improvement over Zen2 will be similar with Zen+ over Zen.
Believe me, I expect that AMD keeps being competitive on their products and in the market, thus we end-users would benefit from the competition. However, limiting X399 from supporting Zen2 Threadrippers(even if the future 48/64cores models really need more powerful chipsets, the 24/32cores 3960X/3970X should be no excuse), raising the new models' launch prices while Intel cutting half of their 10th gen X299 platform CPUs' prices(they were indeed not worth before, but becoming competitve now)... all these familiar operations just ring the bell.
AFAIK, sIntel never added that many feature improvements. For sIntel, IMO, it seemed that the requirement of a new chipset with almost every processor tick or tock seems much more like a sales and marketing tactic.