Weetabix's Capacity Expansion Decision

 Many companies face certain constraints when they decide on capacity expansions. Some firms have lag capacity strategy, in which, they decide on capacity expansion after demand is materialized. Please read the following article: http://markets.businessinsider.com/news/stocks/r-weetabix-expands-manufacturing-capacity-warns-of-price-rises-2017-1-1001705396

Weetabix, the British cereal brand aims to match its capacity with the rising demand. Do you think the decision of capacity expansion is a good idea given the circumstances stated in the article? Can you give more examples of companies who decided to expand their capacity due to increasing demand(some might have been bad decisions)?