Sure, but then this is a nerf primarily aimed at top with an ancillary effect on jungle, rather than a jungle nerf that "tak[es] care not to scare him off top lane", which is what the patch notes imply.
Both Fiddlesticks jungle and top are worthy of being nerfed. If you feel (as I do, and the patch notes imply) that Fiddlesticks jungle is the more important role to target, then it doesn't make sense to pull the "damage to minions" lever, which disproportionately impacts the wrong role.
My prediction is that this nerf will have a bigger impact on top Fiddle WR than jungle Fiddle WR, which seems to be the reverse of what was intended.