Yeah, thought the same but they look like every other jalapeno I've ever had. These are from those cheap-o Walmart packets which may be a case of you get what you paid for. So, I already have some seeds from some different jalapenoes saved for next year. The banana and bell peppers get the same amount of light and water and are mighty tasty.
I started using seeds from mild peppers we bought during the year. A few years ago, I bought two four packs of banana peppers and one batch turned out to be jalapeno. They were too close together and the banana peppers were as hot as the jalapenos.