In a vacuum, I sort of agree. I wouldn't say it's stupid moreso than it's very risky.
It doesn't look like Acuna, Allard, Soroka, Fried, Gohara, Touissant, Riley, or Jackson had their development hurt by their aggressive promotions. Acuna's numbers improved at each stop, and he will probably be the opening day right fielder in Atlanta next year. Allard and Soroka were solid all year and dominated at times. Allard's last start was a 1-hit complete game (7 innings) shutout and one of the more dominant pitching performances I've seen live. Touissant was very solid after his promotion. Riley was the best hitter at Mississippi after his promotion, and Jackson was probably the 2nd best. Fried and Gohara both passed the eye test with Atlanta. My 1 concern with all these guys going forward is Jackson's receiving, but it's honestly probably easier for him to improve that skill catching more advanced AA pitchers than in A ball catching guys who are supposed to have less command.
I might be cherry picking examples where it worked out this year, but I went to about 20 M-Braves games, and I can't think of a single player who was aggressively promoted into or out of Mississippi that didn't perform well after their promotion.