Even if the market looks the same in May, the months until the start can be very important to create some kind of hype around the project: To build the community and to spread the word about Neuroneum on different crypto-news pages.
Timeline is extremely crucial for any project especially in cryptos. I hope the project might have made excellent research on that.
Sure, they will have their reasons for starting their tokensale only at the beginning of May. I just hope for the project that the crypto market has recovered until then and that more people will know Neuroneum then.