No it isn’t a reasonable search because the thing being asked for allows the Feds to crack any phone.
You can’t have it both ways. All phones need to be searchable. That’s the law, and has been forever. Who has the keys and ability to unlock the phone is the question.
Considering Apple has the ability to unlock all phones, they are the current keymasters. Otherwise the keys will need to rest in the hands of the government. Which one do you want?