Your point is still wrong. And it's not unfair, it's a made up claim.
Just think about the article that you quoted for one second and you will realize that its framing is total bs. In order to have a shadow squad, you need to know what the manager want, the manager has to tell you what he wants and he has to know what he precisely wants and it's not something that you will do in a couple of months, no scouting department can build a shadow squad before a new cycle starts, it's something that he is based on insight. And that's where ETH comes in, in 2022 the club started with what he wanted they tried to get Timber, De Jong, Antony, Brobbey, Malacia, three of these players weren't available to us and we moved to alternatives that presumably suited him in Martinez and Casemiro which are both quality players, on top of Antony. The only issue in that has been that we didn't bring a striker in place of Brobbey.
And I will insist on that point, the article is totally flawed when its criticism is based on something that can't be done without heavy inputs from the coaching staff unless the club imposes a tactical setup which can happen in some clubs such as Ajax but that's not the norm. The norm is that the head coach can't rely on transfers from day one, he has to work with the players at his disposal and find out what works and doesn't work then with time the scouting and data science departments can build a compilation that fits the need of the current head coach or squad.
Otherwise what criteria are they supposed to use in order to filter and compile reports? Are these criteria imposed on the manager and if they are what exactly is the difference between that context and one where the manager has to maximize his current team and has no say in who is signed?
And the end of the day, the club accepted his requests and tried to sign all his favored targets. And that has nothing to do with a "lack of support", it's about wrongly trusting your new manager input which can and will also ruin your scouting compilations because the lad can't be trusted.