If you are searched on a private property, at least (and in theory) the law enforcement unit needs to get some sort of warrant before they could search you.
I don't see why we are opening access to our private digital sphere to them to do whatever and whenever they like, and most likely without us knowing what is going on.
Germany is prone to dogmatism. There is a culture of putting things in boxes of right or wrong and then signaling it. Besides, skipping to judgement is easier than trying to unravel complications and risking being questioned in a hot seat. Spirit of being risk-averse.