I really like what they've built here, but... > DSLs (Domain Specific Languages) such as <%=foo%> or {{foo}} reduce portability I would argue, well documented

I really like what they've built here, but... > DSLs (Domain Specific Languages) such as <%=foo%> or {{foo}} reduce portability I would argue, well documented template DSLs increase portability among developers, which is often more important than portability among frameworks.