I partly disagree with this.
Footballers are ordinary people like you and me and therefore their opinions on anything have as much value as any. Anyone can be passionate about something regardless of their job, status or wealth.
Whether you choose to value their individual opinion is up to you but to blanket disregard something someone who isn’t an expert in is wrong imo.
You should generally be coming at it the other way and valuing an experts opinion in higher regard.
Haaland is though.