Your demos use a very old 1.9.1 version of JQuery. When we update to later JQuery, this breaks much functionality in KendoUI. Please make KendoUI work with all versions of JQuery rather than focus on new features. You have versionitis.
Although jQuery 1.9.1 is used in our examples, we support jQuery 1.10..x and 2.0.x as well, as outlined in this documentation article: http://docs.telerik.com/kendo-ui/install/prerequisites#supported-jquery-versions If you experience issues with these versions, please report them via our support channels on telerik.com and they will be addressed accordingly.