That's actually a very cultural thing. But yes, I agree, in the US, apologising too much comes off as weak and so it should not be done often.

This is why while it's acceptable and necessary in some cultures to apologize in advance, or to apologize for small things, in the US, it's better to only apologize when it's really for something big.

Exactly. If people don't like Google Docs they won't open it. No need to apologise.