So, will they6 accpt people that other companies have done their underwriting for them?
It wouldn't work the way you stated for approvals.
Say Oxford charges $100 for healthy, Foresters $120 to allow for diabetics. Diabetic would be approved for Foresters. Your rationale is since Foresters approved them then Oxford should as well...however, they are not charging the extra $20 on everyone to cover that extra risk. Conversely, if Foresters declines them at $120 then would you take them for $100? They may pass your underwriting but there is a definite red flag if the other guy turned them down. With full underwriting you can look deep and get to the root of the problem, with simplified issue you are working on a handful of questions and a couple reports so red flags I would assume are key.
Not saying I like the question on the app, had several people turned down because of it but I can understand some of the reasoning behind it.