Not as yet watch the game but Stephen Maguires granddad passing may well have taken something from his current form. The guy from what i've heard was an ace converting his house to fit a full size table, coaching, encoraging, the works. When you lose a family member whose that close involved with your career too it's a wonder Stephens playing at all.
I've no doubt match fixing goes on in snooker hopefully be it pretty rare but it's the sort of game whereby it's impossible to prove and with the popularity ever growing in the biggest gambling nations of all in the far east the money involved is so great it can only increase as will the accusations.