Intel's report sounds like its narrative was either written by AI or child. "More = bad, less = goooooood!" Lol, there's so much more to cybersecurity than raw numbers of vulnerabilities, such as exploitability characteristics (ease of exploitation, reliability in (re)producing, proof-of-concept code, how common in the wild, etc.), CVSS scores, time-to-patch of the software/hardware vendors, and so on. Context is needed around each vulnerability. There's other nuances to consider as well, but no need for me to ramble on.
That paper become a marketing paper rather than a pure security one, which is a shame. Should Intel get security brownie points? Meh, I'll say sure for governments and large enterprises. Is it serious enough to overcome their performance, efficiency, and overall Total Cost of Ownership problems? That's for each individual and organization to decide, but at the consumer level, Intel's arguments are completely moot; how many consumers are running however old CPU's and motherboards with old BIOS versions, EOS Operating Systems like Windows 7 and/or not keeping up on Windows Update (yes, forgive me Linux crowd as I'm just scoping Windows users this time), and so on.