Because one of those devs that is "to lazy" is Nokia - this issue breaks one of Nokia's own repositories. If you want that to change, vote for Nokia to fix Bug 978. Also, setting up Secure APT signing won't actually make much of anything more secure by itself. The root problem is a mistake in Aegis, not some sort of well-thought-out security measure. However, this is the easiest way to curtail the damage. The problem is that apps.formeego.org prohibits anything other than standalone apps - such as shared libraries - so in many/most cases things that would be eligible for that repository could be and are distributed through Ovi Store instead.