I think that the market has changed and there will be no such growth as it was in 2017. Only worthy projects will grow
Yes because altcoins season on 2017 are just only hype by ICO campaign and now as you said only legit and trusted project will grow, and also reputable altcoins like erhereum, litecoin, xlm will increase price when bitcoin bull run start.
The HYPE was the first round in order to boost the overall market atmosphere but the recent market conditions don't impress the certain group of investors. Due to the several reasons that caused the economically bad environment, crypto investors preferred to invest in the safe heaven financial assets.