Hinduism is indeed so vast, with so many beliefs, that none are right or wrong, imo. Minority view among Vaishnavas as this may be, I find myself leaning towards the belief in Harihara aka Shankaranarayana, as proposed by Sivananda and Swaminarayan. I am curious as to how Sivananda and Swaminarayan and their views are seen.

Something I find interesting is that the temple in this area, while is it called Sri Guruvayurappan Sri Krishnaji Mandir, there are an equal number of services for Lord Shiva, Lord Ganesha, Maa Parvati, as there are for Lord Vishnu and Maa Lakshmi.