So, a better question, concern, or observation during a rally (Yes, Virginia, seven consecutive months to the upside is a rally.), given the extraordinary performance scenario that these investors acknowledge, would be: What can I do to take advantage of the market cycle even more effectively--- the next time?
The answer is as practically simple as it is emotionally difficult. You need to add to portfolios during precipitous or long term market downturns to take advantage of lower prices--- just as you would do in every other aspect of your life. You need first to establish new positions, and then to add to old ones that continue to live up to WCM quality standards.