I completely agree. Nobody is truly an expert in terms of unpredictable phenomena like gambling. Luck plays a significant role and winning isn't guaranteed no matter how experienced or knowledgeable the person might be. Consistent success in gambling doesn't necessarily indicate expertise, but rather a fortunate combination of circumstances.
Those people can only analyze and predict which team that can win without knowing the outcome. If other people follow that suggestion without analyze more by themselves, they may not win and risks their money with those so called an expert. Luck plays a role in gambling so people must not think that it will easy to win in gambling using the other prediction. It is better they don't rely on that expert to choose the team because there are no guarantee for them to win especially if they have to pay for the subscription to that expert. It is better they use that money to place their bet and before that, they can learn about analyzing the match. They will have a chance to improve their skills in sports betting even they still don't have a big chance to win.