There are second-order effects, like drip irrigation and cultivation techniques that optimize for shape, size, and color over heat --- but those are enabled by the industrial jalapeno's new position in the production chain. The peppers just aren't the point where the heat is introduced anymore; that happens later. Might as well optimize for good looking peppers.
This seems fine? Peppers are one of the easier and more forgiving things to grow yourself. Just grow your own or buy from a farmer's market.
Moments later, after reading the thread
This kind of stuff really seems to piss people off, but when you think about the disempowerment of the jalapeno, try to keep in mind that the same industrial processes have performed unalloyed positive things. Have you noticed that you're way more into brussels sprouts now than you were when you were a kid? If you're a GenX-er or a Millenial, that's because today's (delicious) sprouts aren't the same plant as the (gross) sprouts of yore. Same deal with broccolini, which hadn't even been invented until after your birthday (for most of you).