This is a needed change.  All of the income of an ineligible immigrant should be counted towards SNAP eligibility determination.  Deducting a pro-rata share of income for the individual in question has the net effect of lowering the countable income in the rest of the applying household, which has the unfortunate result of making a potentially ineligible househole eligible.  A same-sized household with the same income and no ineligible, disqualified immigrant present could be ineligible because all income has to be counted in that situation.