Considering the Macs with T2 are relatively new (2018 and newer)
https://support.apple.com/HT208862, you'd think a "smart" conspiracy of this sort would brick the pre-T2 Macs capable of running Monterey, which include the 2013 Mac Pro, 2014 mini, and 2015 iMac, MBA, and MBP. It's the people with 5-7-year-old machines who should be getting the "hint" to upgrade.
I doubt any conspiracy, just the outgrowth of added complexity. The more you try to do, the more likely you'll have unintended-but-rare consequences (and when you sell as many machines as Apple does, even thousands of affected users can constitute "rare"). The T2 replaced a lot of time-worn technologies and added some serious security lock-downs. No, this is likely just a garden variety bug that was compounded by a security-related feature like SIP, which responded by locking things down. And it's a good bet that for those still affected, they'll need the firmware refreshed via connection to a second Mac.
Times have changed. Now, everything is a conspiracy. Back in the days of Y2K folks were willing to understand that the Y2K bug was nothing more than human nature and economics at work. Data storage was far more expensive back then, so a 6-character date (MMDDYY) saved real money over an 8-character date. They all knew the Millennium would arrive, but at the time, it was 40, 30, or 20 years into the future. "We'll fix it before it becomes a problem" or "I'm retiring before then, the new guys will fix it."
From my perspective, as systems/societies become more complex, conspiracies become less necessary. There's plenty to go wrong without anyone helping it to happen.