Started hearing this 'your cows are too big' thing back around 2007. Will admit that the first round of Angus-sired heifers, out of my old linebred 1980s percentage Simmental cows ended up making cows that were a LOT bigger than the old girls.
So... we tried a couple of 4-Frame Angus AI sires. Steers got hammered for being short, dumpy puds. Heifers were hit or miss as cows... had a couple that topped out at 925 lb as 3yr olds. Just. Too. Little.
Darn glad I didn't fall for any of those 2.5-3 Frame bulls that Kit Pharo was pushing at the time... but I came real close to biting on 'em.
After sending the dinks to town over a few years, the cow herd pretty well stabilized around 1200# - but there were a few 1600-1800-pounders... mostly daughters of that first Angus bull we bought to bring in more black hides.