I agree with this to an extent.
I don't think bodybuilders are using as much gear as we think. I think they are more into peptides, slin, and HGH to be the monsters they are. Bostin Loyd says he was running 3cc's of tren ace a day.. that is 2100mg of tren a week. No way these guys are running that much. Or tren year round for that matter.
That said, these guys are not taking "trt" dosages. I believe a lot of them cruise on 500+mg a week of test just to maintain their size. Also, contest prepped has changed a bit since the 90's. There are a lot more cosmetic drugs that are used like Masteron that up the total mg dose.
Now, I am not a top level bodybuilder, but I am far from a novice. For me, contest prep is about maintaining mass while getting as shredded as possible. So you don't need 2g's of test, with 2g's of tren to do this. There are a lot of finishing steroids, and other things that help to bring out vascularity and hardness. And those are all added. Test, Tren, Mast, and Winstrol is the bread and butter for this guys.. no question about it. We just dont' know how much they are running.
Also, getting big is all about diet. For the majority of my "career", I have bulked naturally in the off-season. The cycle that I am currently on is the first time I have really bulked with juice. The top bodybuilder off-season protocol are probably pretty simple. Probably cruising on a good amount of test, with slin and peptides added in. And then when they blast.. it's probably 2 compounds, like test and deca. Nothing special.
I typed this on my phone, so sorry if it doesn't make since, or appears scattered.