Password reset by emailing temporary passwords

Question

A group in my company is implementing a single-sign-on REST API for our applications. This authentication service has a password reset function. The application sends the user

Answer 1

Are there any significant security reasons to prefer one method over the other?

Yes. If you go the temporary password route then anyone can annoy the crap out of a user by constantly hitting the reset link and putting in that user's email address. If you use password reset links the user can just ignore them and delete the emails.