That's why I noted - if we assume that he wants to be a weightlifter. If he want's to be a weightlifter, and by saying to be a weightlifter I mean practicing olympic weightlifting as a main concept in his physical developement, therefore to compete if he wants to, then initially he should focus on learning the movements, specific for the olympic weightlifting. If he load himself with assistant work before he knows the main movements themselves, as an addition to his weightlifting he doesn't know yet in first place, then his developement as a weightlifter wouldn't be as efficient as it could be. He wrote that he's trying to start olympic weightlifting.
Yes, Russia and China produce world class lifters while implementing accessory work, but the author isn't one of them, at least for now. He's approaching the sport at this moment, so he has far more issues and questions to seek answers for, than what assistant exerscice to add. If he doesn't know that, he'll learn it in the near future. Adding assistant work wont do harm to him, but it in my opinion this shouldn't be his priority for now.
Another thing - we don't know, at least I don't know the author's age, his physical condition, how he performs under physical tests, therefore does he needs general physical preparation, doesn't he, does he has certain impalances in one or another form or he doesn't have such, is there a legit mentor nearby to watch him or he is alone in this.
Assistance work can be in help in certain circumstances, but according to me, such assistance work is different than the assistance work he ask for in his thread.
But otherwise yes, if he just want's to get to know the lifts, if he's just interested to try something as an addition to his arsenal, then the olympic movements themselves can be the assistance work and don't devote his soul in them.