Do you know if this is strictly related to it's status as a desktop wallet meaning more control over private keys, or because of other reasons leading to high security?

I know there are some that prefer open source but then in the case of wallets half of people want open source to review the code but the other half say closed source is fine it's better if it is not open source because it may lead to people finding new attack vectors into the wallet

Thanks in advance,

-jd