> But if this happens a lot, the consequence will be, that search warrants are issued without second thought and the person/company affected by the search should always deny it first.

I think you'll find the vast majority of search warrants aren't even read by the judge signing them. When I owned a (hosting) company it was blatantly obvious reading them, and we had a policy of challenging them when possible.

The whole search warrant/subpoena process is a joke. There is essentially no oversight on law enforcement whatsoever here and the whole trope of "but a judge reviewed it!" is a complete and utter outright lie in many cases.