WAS Moody's rating of India, as finance minister Yashwant Sinha petulantly described it, too harsh and overcautious? The latter, yes, because a rating agency's business is to act as a weathervane. And Moody's had burnt its fingers pretty badly in its earlier ratings of Asian countries. So much so that even in May, it put out a very pessimistic analysis of Asia's economies. "It will really get worse," said the analysis, "before it gets better, and that is why we have Korea rated at Ba1. It isn't ready to join the ranks of investment-grade issuers. Things in Thailand are much the same and...Indonesia will, in effect, spend 1998 probably accomplishing very little in the way of necessary reform." About Japan, too, the report felt that without East Asian markets for exports, the Japanese might find little scope for immediate improvement.