Not at all. We must not have the full picture of Michael Pollan's garden here. It looks rather small, certainly nothing to match his grandfather's garden, described here, in a piece I like rather better than his more recent work.
Of course, Pollan must be busy flying around the country promoting his books, too busy to maintain the year-round garden that must be possible in California. I'd hate to have his travel schedule over the next weeks, or his carbon foot-print.