It is less bad because it is opt out (and the submission says 'can use', not 'will'); I won't say it's best. From the summary of the changes:
Section 2.K. Advertising and Endorsements on LinkedIn: We added this section to explain that LinkedIn may use you profile picture and name in social advertising shown to your network on LinkedIn. We also explain that social advertising will contain information from you and your connections’ interaction with the LinkedIn site (such as when you recommend a product or service on a company page, follow a company, etc.). We also point you to the Setting where you can control the use of your profile information in LinkedIn’s social advertising.
Section 2.K. Advertising and Endorsements on LinkedIn: We added this section to explain that LinkedIn may use you profile picture and name in social advertising shown to your network on LinkedIn. We also explain that social advertising will contain information from you and your connections’ interaction with the LinkedIn site (such as when you recommend a product or service on a company page, follow a company, etc.). We also point you to the Setting where you can control the use of your profile information in LinkedIn’s social advertising.
http://www.linkedin.com/static?key=pop%2Fpop_privacy_policy_...