It's lazy journalism and a failure to comprehend the brand. The alpha platform (ATS/CT4) were developed by Cadillac and adopted by other models CT5 and Camaro. The HighFeature V6 was developed for Cadillac and eventually dropped in just about every GM product where it could fit.
The Blackwing V8(LTA) is the pinnacle Cadillac engine from a technology standpoint but it's too big and expensive to fit in anything but an Omega or larger platform vehicle. The LF4 takes the LF3 and applies all the best technology from the LTA. The LF4 is Cadillac's technological flagship powerplant.
So while they are pining for a raucous V8 and bemoaning the swan song of the big small block, (which isn't going anywhere for a while, in the C8) they completely miss the fact that the LF4 is the final evolution of the engine the folks in Flint designed for Cadillac that wound up sustaining GM as company. There's an article to be told in just that. You literally have an award winning v6 smooth enough to run unnoticed in a Buick, the torque to work in trucks and full size SUVs, yet quick reving and powerful enough to be a legit NA performance powerplant in Camaro .
Does the LF4 sound good, absolutely. It's not a v8 true, however it is the most potent version of the most prolific v6 GM has ever produced coming full circle to the platform that it was originally born to power. It's Alpha and HighFeature, both Cadillac developed designs, together again for the last time.
I can read specs for myself and driving impressions are great, but for crying out loud, do some actual journalism!