See patch.
I cannot think of any situation where we would not want to verify, and verifying always will help many users to properly detect misflashes.
The patch is not tested on hardware (yet), might need a bit of tweaking.
If this goes in the -v option will stay for
(a) backwards compatibility
(b) manual verifying via 'flashrom -v file.bin' (vs. -wv directly)
Uwe.