smbakeresq
Explorer
Maybe it makes them slightly less useful, but Flaming Sphere "ignites flammable objects not being worn or carried" so as long as it's not in an area where nothing can catch on fire... Should still work in most outdoor environments, inside buildings with any wooden parts, caverns with moss or fungi or lichens, and so forth. There is probably something flammable in most environments (except maybe the artic and certain very clean dungeons with no detritus or wooden frames).
But you'll usually know ahead of time what kind of environment you'll be in and so you'll be able to prepare accordingly. I dunno. I guess they are less useful, but they're not totally nerfed.
It becomes more important to make those knowledge checks and scouting runs to see where the torches, candles, lava, etc is in an environment. That benefits a smart group.