In my (illeterate) opinion, where I see the parallelism breaking is that Cisco didn't have Mag7 sized, non-internet companies supporting those sales. It was more akin to a gazillion Palantirs buying the chips, rather than MS or Google, which are not AI companies per se.
43x is a very high valuation, no doubt. My point is that maybe the hit is something like 30-40% instead of 70-90%. Wdyt?