BNB has an ambition to be the public chain after it announce its new plan, this is the reason that the price grow so much and fall a little, it deserver a long term holding and lets wait to see
Considering the recent movement Yes, very long on BNB. I've been a strong supporter of the exchange as well as the Binance Coin 'BNB' As you said that BNB have done well established their exchange in less than 12 months, constant improvements going on. It's not taught to say that huge long-term growth. Lets see how the next burn effects the coin.
It will help to improve the value of their coins as well gives more chances to investors to invest on them, it will help the price to go up when they lessen the supply. This why other ICO when they got successful they says that they will burn the unsold token to help on their circulating coins.