Binance cannot be the main reason for the bullish trend of a coin or token, it can only contribute towards its improvement and exposures to a large trade or intending investors, some have been listed on binance and plummet and the same way some have also been listed and skyrocket, this is all about the idea behind the launching of any crypto project as well as the funding capability to that project to succeed.
Well, you are actually right and I wouldn't want to say otherwise, but to be honest with you, Binance listing does more for any crypto coin or token than just exposing to the coin or token to more investors through access and visibility, Binance listing is like the kyc most need to trust a project, this is to say that, until a project is listed on Binance, several persons/investors never will buy it because they do not trust it, but immediately a coin or token is listed on Binance, many investors, even those who are not trading on Binance see that project as a reputable and worth investing in for the long term, this is why majority of tokens that enters Binance tends to pump hard, and by majority, I mean majority..
Only a very insignificant number of coins or tokens gets listed on Binance and the price dumps, such coins or tokens are usually a coin or token that has been in existence for a long time with no meaningful use case and over pumped price which is usually due to investors buying and holding because they are expecting Binance listing, so, this usually is what refer to as "buy the rumor, and sell the news" thing.