Enthusiasts would discern that difference but the typical buyer doesn't even know what those lakes are. Yes, generically, it's naturally for anyone to assume that the Ultra parts would have the very latest technology, but this isn't new and just isn't a safe assumption.
Intel just wants prospects and customers to know that the Ultra parts are higher-end whereas non-Ultras are lower- to mid-end. They aren't failing on that marketing segmentation, so no surprise here for me at all.
AMD was still putting in the older Vega iGPU's on newer APU's when RDNA1 and even RDNA2 was out. Interestingly, they jumped right from Vega to RDNA2 on all iGPU's of that time if I recall correctly. Moreover, we already know that AMD is going to continue putting RDNA2 into their APU's while also having RDNA3 and 3.5 ones all at the same time. Moreover, Zen 3, Zen 3+, 4, and 5 APU's are going to exist alongside each other. Not really a bad thing as anything Zen 3 and later are nothing short of incredible.