IMO, the number of teams doesn't matter much. If cricket is an Olympic sports, then it will be taken seriously by a lot of the governments around the world. Winning an Olympic medal is considered as close to priceless. And a lot of countries, where cricket is not popular now (China, Korea, Germany, Japan.etc), will give attention to the sport if it is included in the Olympics.
Forbes these days is just what they call ego media. You can pay to get almost anything inside and because most people still think if you're published in Forbes it gives you reputation and credibility. It kinda does, but if you also see some of the crap inside Forbes you might not even want to be associated sometimes:)
Olympics for sure is the way, but maybe cricket takes too long.
I think it is just speculation by Forbes, they are know to create such kind of click bait. They are also not into cricket as much as espn is. It is better to wait and watch what espn has to say about the number of teams.
Forbes is a renowned newspaper. Will they give false or rumored news? Although Forbes does not do much news related to cricket. I agree with @pakhitheboss. ESPN is more credible than Forbes, in the case of sports news.