Genuine question (not a snarky comment as it might sound), but can you link to any research that indicates it's 'rarely' and advantage?
I've been reading books recently that emphasise the importance of being the first to market with something innovative. Your brand then gets associated with the product/service ("hoover", "Uber", "google") even when referring to the general category.
Second-mover advantages do exist, but is there any research on whether it's more advantageous than being a first mover who iterates? I know it can happen, but in this case I'd rather be Uber with an established brand & mindshare rather than Google playing catch-up.