Never heard that one, but I bought a Japanese Riverside reissue of Drew and Ware playing Jerome Kern tunes, and I remember it being much like your description of the Warren/Arlen recordings. I didn't keep the Kern record for long - sounded like something that might have been made for use as muzak. But why Drew and Ware? Very strange.
The two Drew/Ware albums on Judson were 'A Harry Warren Showcase' and 'A Harold Arlen Showcase'.
Judson was one of Riverside's subsidiary labels. It specialized in easy-to-listen music. Other albums on the label included 'Dance Time' (Chauncey Grey and his Orchestra play Gershwin, 'Dancing in the Dark' by Lenny Herman, 'An Evening with Offenbach', 'Chansons Populaires Françaises' by Françoise Prévost, 'Folk Music for People Who Hate Folk Music' by Herb Strauss, accompanied by Mundell Lowe and his Friends, etc...
Nice offbeat covers by Paul Weller/Paul Bacon.
Don't think these two Drew albums ever passed for strict jazz sessions.