Three months in the national spotlight reached a kind of peak this week for conventional supermarkets, as news from the two largest U.S. chains highlighted crowning performances during the coronavirus crisis. Kroger detailed robust in-store and online sales growth in its fiscal first quarter that officials said vindicated its strenuous Restock program, while Albertsons Cos. at long last priced an initial public stock offering fueled by rapid COVID profit and sales growth valuing the company at $10 billion. And while there were plenty of reminders that the industry was not beyond the complications of operating in ongoing health, economic and social crises, the benefits of being essential providers were, in a word, super.