Most of the projects are not very much fundraising during the ico, I think due to the fact that the market is still present in most bears , and this in this market only need to wait
That is correct, duo very high bitcoin price in 2017 it was easy to collect funds which is very hard nowadays thus projects are too greedy and they are trying to collect more money than they need.
Another reason is many investors lost money and they don't want to go near ICO's.