It is mentioned in the article there will be one parent project and many child projects. If Sitefinity is the parent project then it will be working, but if it is a child projects there is a requirement to remove web.config because the child projects inherit from parent web.config which will make Sitefinity not work since its web.config is specifically configured for its needs.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items