I am guessing the writer is hindu , so I don't think he even knows much about Jesus or Mohammad. There are thousands of spin off or adaptation of Ramayan and Mahabharat even before a melenium. Sri Lanka,Nepal , Thailand, Indonesia and more region have there own form of these epics. I have read one in which Mother Sita is Lord Ravan's daughter and there's also one in which Lord Lakhman is not even present. It doesn't matter if you consider it a work of fiction or not , you can still enjoy and learn from all different adaptation . All these epics were recorded or written for future generations to learn from them not to worship them as holy book that is an Abrahamic concept. We had Tulsi das and Kabir commenting on God let alone . Please let me enjoy novels with indic refrences and don't read it if you don't like it . Please so not spread negativity 🙏🙏🙏🙏.