The club and Madrid and agents all give a shit about briefing the press through talismanic figures like Ornstein, but this is mostly in relation to contracts and transfers, rather than dressing room morale or fan bonhomie.
The most likely scenarios are that Vini's people are trying to boost his negotiating power, or that we're trying to split the attention of our rivals or lead some of them into the thicket of those negotiations, or both. Madrid is already saying it's not happening, since controlling the possibilities is their interest in the state of affairs.
I do like the theory Vinicius Jr doesn't prefer to play for Mourinho, but we've seen often enough how even the most serious cases of ostensibly conflicting mores don't much influence the traffic of transfers and contracts.