Icos are failling now because the market is generally down we only need to wait a little to see if the market is going to recover and pull most of this new coins upwards. Some of the icos also did not have a good products behind them and that makes them never to recover.
No, just because ICO fails doesn't mean they are not good, there are many reasons that can effect the ICO like the bear market will bring most of cryptocurrencies down making investors don't want to invest anymore, and because too many ICOs nowadays that we can barely find a really useful project while there are too many scammers and trash projects.
I guess the crypto market will have more ICOs in the future but unless we can improve ICOs quality we will never see this market rise higher than before.