So I have a main JSP index page, \"index.jsp\", which has several includes. Something like,
<%@ include file=\"/WEB-INF/views/includes/jstl/include.jsp\"
Eclipse is an epic failure with regard to JSP/EL validation. Just ignore it or disable all (or parts of) JSP/EL validation in workspace preferences through Validation and/or Web > JSP Files > Validation.