Are you mentally challenged?
Of course the rewards are fine, Novo has 0.1 reward for mining and witnessing and that will change to 0.025 for miners and 0.075 for witness and Novo was secure at less then $1. The announced reward halving for Novo was also announced while the price was close to $1
With Gulden my guess is they want to determine the block the first drop must occur and other administrative checks.
Calm down!!!
Rijk said they are going to figure out the security implications first and only start looking after Witness sync. Waiting to hear when we will have answer from @Dev or @GAB
They can risk it with Novo because it's not a well known coin and not much support on the exchange but I won't buy Novo if they are worried about security with the Gulden change. It's good they take time to investigate because Gulden is more popular and more funds at risk.