And you're right. It's not the best program out there, I agree. But for comparisons from one build to another, it's accurate.
Also, what all of you are missing, I am speaking in general terms, not specifically about the OP's particular combo. Regardless, I'll stand behind the wider LSA as having a flatter overall torque curve.
And yes, I am full aware YR, that the valve events dictate where the LAS falls. But it's much easier for "most" to choose the LSA and shortcut it, rather than actually put any brain power to it.