The WNBA opened its 30th season with some big games and an even bigger conversation about refereeing . League officiating leadership say this is a necessary adjustment period as the WNBA cleans up excessive physicality.    In a joint interview with Sports Illustrated on Thursday, WNBA head of league operations Bethany Donaphin, NBA senior vice president and head of referee development and training Monty McCutchen and WNBA head of referee development and performance Sue Blauch said they’re pleased with the new officiating task force and believe the league is heading in the right direction.  “To think that we’ve had a game as tough and rough as it was over the last four years, to clean that up, there wouldn’t be an adjustment period—I think we all expected that,” says McCutchen, who oversees refereeing across the NBA, WNBA and G-League. “The fact that we’ll get some feedback publicly, as well as privately, is not a surprise to me, nor do I begrudge anyone [giving] that feedback.…