The government, when Democratic anyway, is a reflection of the people. Quite literally the etymological root of the word. We are fortunate to live in a time where when such a western democratic government does something wrong — particularly in France — the people can demand change by way of riot or vote. By extension, such laws were drafted in representation if not direct referendum by the people. In other words, the extension of this CEO getting arrested on France soil IS the will of the people. And if the will of the people demands a degree of security and resources to inhibit crime, then so be it.
I wonder to what extent encrypted communications permitted (or would've exacerbated) the likes of the Charlie Hebdo attack in France. I'm pretty sure 99.99999% of all communications the average citizen does not need to be secured beyond the capacity of a search warrant to reveal.
You're right, it should not be easy; but it should also not be impossible when necessary.