Precisely, but he needed the approval of Bartomeu to do this. It's been already fact-checked that his conversation with Suarez lasted 1 min, 52 secs. For other amigos, he has implied that they are not in his plans at all (Vidal and Raki specifically). Koeman will look like a fool if Messi's power move works and all the amigos are here next season. This is a big reason why some of us believe he may resign if he's not even allowed to carry out his plans.
Best option is Messi and the amigos go and things continue with Koeman making the shots. Then we get rid of Bartomeu in the spring and that's done. This season is a fully transitional one. Until the new board comes in Koeman has enough time to show us if he has some clear ideas, or he was just very good at getting rid of the seniors.
The 2nd best thing is Messi goes, and Bartomeu goes. Koeman keeps doing the same thing with another board. Amigos gone, except the ones Koeman thinks that have something left and can change their ways.
The 2nd worst thing is both Messi and Bartomeu stay, and Bartomeu takes away Koemans' powers to soften up Messi, keeping Suarez in the team to please him. Basically this is Bartomeu chickening out.
The worst possible thing is Bartomeu goes, Messi stays and uses this move to make sure his friends stay as well, basically confirming that this was a power play to make sure him and his group still rule in the team. Then Koeman is either sacked or he resigns because he's been turned into another Setien-like figure with no actual authority over the veterans.