Prime Minister Abe is quoted (link) as saying: "The fact is, there is no evidence to prove there was coercion" (a repudiation of his own government's apology in 1993).
Like President Reagan on the Vietnam War: "Those Americans who went to Vietnam fought for freedom, a truly noble cause" (link).
Tidying up history can deliver political dividends far down the road, clearly. But I wonder if it doesn't end up distancing people from their own countries in the end, all that white paint makes for a history that's rather hard to access. Surely pain is a part of living in a country, feeling a part of something, thinking of responsibilities.