No need to dwell with the past opportunities but instead moving forward and try to see if you can take advantage of the current market, the value of those assets are still cheap compared to their last time high, there's always a good chance that those assets can rise high once it was added to binance, you can buy and hold till the value reached your target peak.
Do your DYOR and the rest will be passive for your investment. Keep on track of all the progress and activities. It gives a lot of positive vibes while holding your assets.
Don't expect gambling coins to be listed on Binance, so far only one gambling token has reached trades on binance and besides that the average gambling coin trading volume is very low, so it will be difficult to meet the listing criteria requirements for submission to the Binance exchange, but if for passive income from analysis of project progress then it's your own consideration but don't speculate too much before you are disappointed with the decision.