On its face this sounds like it makes sense but why would the lottery care, at all? They get money per ticket, a story that buying lots of tickets increases your chances of winning, it's win win win for them.
I believe it's a marketing/psychology thing - people like to hear stories about how people like them won (busy person wins big from inexpensive last minute purchase) because they can relate and are more likely to buy a ticket in the next draw. Hearing that some international syndicate with big money and clever mathematicians won makes the everyman think that a big win is out of reach for them.