I don’t know that “always” is correct here. For this cycle? Yeah he probably will have some trouble with the ~15 lb jump this go round, but look at David Taylor. He won NCAAs at 165 in 2012, and pretty quickly became 2nd in the US behind Burroughs at 74 kg. Then made the complete jump to 86 (30 lb bump) and we see where he got to.
Now of course body types are different and Carter is not DT, but if he’s as good as we all think he is, he can and absolutely be competitive at 86 by 2028.
Would 79 be a sweet spot for him? Probably, but who knows where his body takes him. I think he’s more likely to struggle if he decides to fluctuate between 79/86 vs sticking at 86 long term.
In reality, 74 was just never going to be an option for him. That’s a lot of weight to cut to get by a guy like Burroughs let alone Dake if you do.