I've been meaning to say this for a while now:
There are many things to argue about with these station groups: inherent editorial biases, incompetent newsrooms/production, even graphical presentation can be considered. But if you're simply griping about news music -- arguably about a total of 30 seconds to 1 minute of a 30-minute broadcast -- you're overreacting.
Now while C Clarity is not a traditional "news" package, but it's not a bad package by any stretch of the imagination. Granted those longer lived packages are synonymous with the stations they are with, they are aged DO age, and they show their age. The music is fine. It's just modern, and everyone loves to hate anything modern. Just imagine if everyone was still using the music they used in 1970 -- every market would be suffering with a WJZ 1987 - 2017. sound.
As an aside: NONE of those packages you mention are widely used: Signature is in use by six stations nationwide, all in sub-100 TV markets, Primetime News is used by one broadcast and a handful of cable stations, and we all know who uses MCTYW. Eyewitness News is the exception, which most likely occurs because it's a staple in the three largest markets in the country on stations O&O'd by The Mouse, except of course the one who uses MCTYW and that weird Fresno market . The ONLY other broadcast stations still using EWN are WLNE Providence, WJRT Flint, WBAY Green Bay and also a handful of sub-100 DMA stations.