It did, also absolutely, confirm the theory about the Labour party being obsessed with itself, creating myths & making everything rather rather melodramatic- Peter Mandelson was in tears at one point when interviewed about his sacking, which isn't a surprise when you realise he spend about three decades of his life invested in this.
You don't seem the same sort of sentimentality in the Conservatives except for those who still bang on about Mrs T getting deposed. We're a party that rather loves the idea of a documentary getting made about our quest.
You can argue while removing Thatcher did help the Tories to remain in power, it also did lead to divisions in the party that blew the party up in the mid-1990s and resulted in the Tories being all but dead from like 1995 to 2006
