The documentation at the last ER easily explains an upgrade like this. Increasing the divy a penny a quarter seems easy ... wonder if they will do more after the Fed announcement. If not, they're already doing fine by my standards.
Careful...Keefe Bruyette has been around a long time and is well-known and respected for their research as relates to the financial industry. If you don't think think they're a household name in the investment industry, think again.