Any Handler (Pro-Amateur) can Run 5-8 dogs period, it makes those that run in mass, have to pick the best dogs to be that 5-8, any trip divided btw 5-8 owners is completely doable, heck an Amateur does it with no clients for 1-2 dogs. This eliminates the 20-30 dogs handlers, who are often times to busy to help at a stake. Easy quick, less dogs, the Amateur is not affected, there's still a place for the Pro, and for those who want to run more dogs, it brings in other handlers, who can help at the event, air-run dogs on the same truck, and no-one (contestants, judges, setup workers) is waiting for any single handler (pre-line prep. honor situation, retrieving-airing dogs, etc.).
Don't hold back my 2-3 year old MH pocket rocket, she has just as much chance as any, and probably a lot more than some. I run my own dogs & take care of all my own expenses. I don't pony up an entry fee-travel, for a dog without a pretty good shot.