Many work better, such as both WWA Avengers movies (just the simple A logo - stunning), Guardians WWA tape cassette would be ruined with a title. In fact most WWA Marvel movies are better with JUST the artwork on the front.
Disney's Aladdin, stunning as it was, would be better with just the image, and no title. Same with many other WWA Disney's such as Frozen and Inside Out - would be tacky as the rest with a title on the front.
But yes, it can depend on artwork - The Little Mermaid for example. Would have preferred the simply sillouette image but thats one where it kinda works.
Titles on the spine no only make sense, but are kinda needed, so I welcome that change, just so long as front titles are on J-cards if at all.