Purpose of DTI for commercial loans based off of DSCR

[Wilson Pun]

What's the point for commercial lenders to consider individual's DTI for a loan on an income producing property owned by an entity? The loan amount will be based off of NOI metrics like DSCR and Debt Yield, along with LTV anyway. Is it just to determine if the personal guarantor has sufficiently low DTI to be able to guaranty the loan?