The truth remains that a YouTube video isn't enough to switch an addict to responsible gambling. Whatever keywords that was used to promote the clip is supposed to be a click bait to derive views and traffic to the creator. However, it's not right to direct players into the wrong directions, but that could be a means the creator wants to make money in gambling. Instead of saving problem gamers, he makes profits through them, although the watch time might get affected because some people after seeing the content won't watch till the end.
You cannot underestimate the power of any information in any form. I have heard people say that just one video on YouTube changed their lives. How effective a video will be determined by the content and the viewer's needs. If the right information a gambler needs is in the video it could be transformational. All content creators want to make money, but some are focused on giving out quality content that can be beneficial to viewers.