Unfortunately it's not a signal at all. They don't need to cater to their enthusiast market as much as you'd think. Enthusiasts are a very small percentage of owners and in any manufacturer's eyes, the BRZ, WRX and STI is is enough. They sell a shitload of plain jane Outbacks and foresters, I bet the xt take rate is low enough to justify not bothering with a performance version of any other model.