Well, you are right about that, they took the side that was most convenient for them, all tokens that are on Binance obviously attract attention, and they are aware, in fact, as soon as they know that there is a tkne on Binance, some investors see it much more secure , they see it with more liquidity and it can give some risks in favor of investment there, what you say is not bad, and the team that was able to put their tokens there is worthy of congratulations.
I have seen many projects that are very good, and that always want to enter the best exchanges, but I do not know what happens to them along the way, something goes wrong and they do not enter, that sometimes makes those projects collapse.
Although some of your points are valid but just because a coin is available on binance doesn't mean it will give them good returns.
Obviously it might have a good liquidity for a certain time since binance is the largest crypto exchange but it has to have a utility inorder to gain momentum in price.
Risks are associated with all the coins in crypto market but most of the times coins and tokens with better utility tend to survive for a longer time.