There needs to be regulation but banning them all together is not the right solution. However they need to start from somewhere. ICOs in China were already starting to get out of hand with Binance launching like 5 every day. Bitcoin also needed to cool down a bit, so in my opinion this is all healthy in the long term. What you don't actually see is that there are many financial criminals involved in a lot of these ICOs, going in for a quick ROI.