It most certainly is the Southington, Conn. station. I positively IDed it over the summer when it stopped-on-seek near Pottstown one night, cranking out the hits described above. At first I wondered if Wibbage was back, until I remembered the Phila. 990 has zero signal toward Pottstown at night.
Just a couple weeks ago I was driving on East Main Street/Ridge Pike itself, practically looking at the WNTP towers and hearing Southington underneath.
As for "the crap on 990 Philly" these days, it's one of the best possible uses for a somewhat-hampered regional AM facility and has more listeners/advertisers than you'd probably think. CCM had a nice, long, successful run on 990 WZZD, but with K-Love and Word FM and Reach FM and F.L.N. and Tune-In and I-Heart and Live365 and Shoutcast and Music Choice and XM/Sirius, the present 990 format has a much better chance on AM than the previous music one(s) in 2019.