It's a sign of the changing times, today's turbo 4 cylinders are yesterday's V6's, todays turbo V6's are yesterday's V8's. The vast majority of consumers want an engine with a certain level of power, a nice flat torque curve, good NVH, etc the number of cylinders doesn't really matter. Personally I'd like to see Toyota keep it's UR engine family (the successor to the legendary UZ's) but I'd also like to see the end of the current SUV and crossover pandemic and that's only going to get worse before it gets better.