When has it ever been measured differently? Whether vouchers, ticket stubs, or coupons, it's always been measured on home games mostly. I don't remember a time historically when it hasn't been!?
How has he side stepped the question? Quite clearly said, season ticket holders predominantly fund the club, Tony the chairman is a mathematician, that is the way the Loyalty system is set. Seems a pretty straightforward answer, whether you agree or not is another matter.