Most folks who mess with peppers feel like there are multiple strains within a particular variety, especially when we're talking about the more popular and/or mainstream chiles, like Jalapeños, Habaneros, Bells, and even Cayennes.
Other folks tend to be more traditional/pedantic/retentive about it. They like to stick to the classics, spell Mexico with a "j," Jalapeño with an "x," and insist that the only way to get true landrace seeds is to visit a street vendor at a market in whatever country the chile in question comes from, where you can buy a fresh pod and save seeds.
Personally, I am a little bit skeptical of the dizzying array of sub-strains, many of which are unstable and/or BS. I see a lot of dipshits making cute names for their questionable f2 crosses and I think to myself: "that's not a real pepper!" But I also see that there are significant differences between different strains within a variety and, even if it's not a real & stable strain yet, dedicated growers could make sure that one day, it will be.
All of this stuff is largely a matter of philosophy and perception. In the end, we're all just trying to grow delicious chiles in our gardens... ️