Two great answers
My thoughts as well. On item 1, I see this question quite often and it always leads folks to confusion. The particular line you're looking at pertains to activities that the bank provides to entities that provide services/loans, etc., to small businesses (ie the SBA or an SBA subsidiary). What they're saying is that if the bank provides a loan, or perhaps a service (counseling for instance) to an entity that provides services to businesses with revenues below one million, the bank's loan or service would then be eligible for CD consideration for the bank in it's PE. Don't confuse this with actual CD services or lending to LMI geographies. They are two seperate items.
2. If the loan for that business was reportable on the CRA LR, it would not then qualify for CD credit. If it was not reportable to the LR and you could make a case that it had value (saving or adding jobs) to LMI people or geographies, you could then take CD credit for the deal. It would again have nothing to do with the number of LMI tracts but would have everything to do with the value it brings to LMI tracts or people. You can easily have a business in a middle income geography that benefits LMI people and take credit for it if you can establish the value it brings to the LMI people.