The July part is the date when they will be totally effective the rules.
And the second sentence talks about what happens if your profit margins are below 30%, something not unusual
Then yes, I believe you'll see a nice increase in sales after July.
And if you can't make more than 30% profit, then you can't play ball here. Just like you couldn't get your products into Wal-Mart if you can't afford their commission and still make money for yourself.