Friday night, the English National Opera finally got to play in its newly refurbished home, after a long delay. “The good news is that the performance finally went ahead, the first building block in the first ENO Ring for more than a quarter of a century. The bad news is that, at the last moment, ENO told opera critics to stay away, citing inadequate stage preparation time since the company reclaimed its home theatre this month after an eight-month refit.”