No, that's not what's being stated.
IF everything is indexed perfectly as machined, dot-to-dot is going to install the cam with the intake centerline at 104deg ATDC, not the "straight-up" LSA of 110deg. You check & correct it 'cause it ain't a perfect world. The tolerance stack-up can put You off 4deg real quick, crank keyway, crank & cam sprocket keyways, & cam keyway,(or dowel pin/hole), can all be off. Worse/more critical on the cam end because that error is multiplied 2X at the crank.