I definitely think that the whole event around Terra (Luna) will scare away some or eve a lot of potential investors from the crypto market, at least for a little while now. I mean just look at what happened in the last two weeks or so. Even the people that were already invested into the crypto market were suddenly scared and began to massively sell of their holdings. Even USDT was at around 0,95$ at some point a few days ago if i remember correctly. So if people that are already in the crypto market become scared then guess what happened to people that were only thinking about to invest into cryptos in the future. Time will heal all wounds though.
It will have an impact, as the news of the crash of Luna was also in some popular newspapers. However, when we get to a new bullmarket again, a lot of people will have forgotten about Luna and will be tempted to become an investor as they think it will be easy and quick money.