It is definitely not the case that curl has been or is now a marquee vulnerability research target. It's a CLI HTTP fetcher. It's the same with sudo. It's a big deal if a sudo vulnerability gets found, because it's an extremely load-bearing piece of software, but sudo is itself not a prime target, because it doesn't do much.
There is no claim that it is a "vulnerability research target". It is a bug finding magnet, and bugs can be found by anything from gcc warnings to AI tools.
No, it didn't attract a bluepill exploit research.
The fact that 300 bugs found in a year is not a recommendation as the pro-AI mafia suddenly claims ("because it has been analyzed!") still stands. Maybe the AI-mafia should sell "analyzed by Mythos" labels to impress people who don't write public software or find bugs for that matter.