All technology is dual use, so you can use it to defend yourself as well as to attack others. When net2o defends your privacy by hiding what you communicate, it makes it easier to plot crimes, to copy information which is regarded illegal (e.g. copyright violations or child porn), and in other ways subvert law. On the other hand, privacy is also protected by law, so supporting privacy through technical means is supporting the law.
One of the key doctrines of the rule of law is the principle of proportionality. Catching criminals should be something which requires effort, an effort that is comparable to the damages of criminality and the efforts to hide criminal activity.
Fortunately, intercepting communication is not the only way to investigate crimes - from the experience with data retention, it seems to be that surveillance is a pretty bad way to do so. Therefore, if you think your life depends on net2o, because you are planning something which your government will pursue with a lot of resources, don't. net2o is making the Internet a bit more secure, but it doesn't make you invisible, it doesn't make the damage to your victims and your profits go away. And that means there are still traces, and with enough effort, you will be identified. Remember: Freedom, security, and convenience form a triangle, you can't get 100% of all of them at the same time, but we can make efforts to give you a good compromise of all three.
net2o is deliberately made to give enough convenience to be used by everybody, because without wide use, your communication will be insecure most of the time, even if you want to make the effort to communicate securely. With net2o, your communication is more secure, so you enjoy more freedom. But don't overdo it, as there are limitations. net2o doesn't help much on endpoint security - it doesn't protect your device from being taken over and remotely controlled, especially if the means to take it over are coming from channels totally unrelated to net2o. net2o doesn't prevent your conspiracy group to be infiltrated by agents. And net2o doesn't hide the money traces from your illegal sales, though maybe someone might implement an anonymous currency on top of it.
Therefore, net2o's ambitions are just humble to make it sufficiently more difficult and expensive to create dragnet surveillance, to make it costly enough to invade your privacy so that it isn't done without due cause. For a free society, that is just as it is meant by the constitution, so net2o is defending the constitution. For a less free society, being more safe from attacks from the outside is still considered important, so it is defending sovereignty.
I don't want to know the content of your communication, as that's not my business. I don't want to operate the computers which store these information, because that's not my business plan; it gives you control and responsibility. Use it wisely, use it for good.