It's another choice, and I'm glad to see a company like BB offering this, and the rest of their line of ammo.
The advantages of a 190 over a 170 are as debateable as comparing a 170 to a 150. For deer, they are all proven.
If a 30-30 was all I had, I'd choose the 190gr load for bigger critters, or carrying one in the back country for personal defense. The advantages may be mostly psychological, but there's certainly no downside.
