What Roku actually documents about the light
Roku's pairing instructions say to hold the pairing button until the status light flashes. That is the whole specification: a flash, during pairing. Roku does not name a colour in that context and does not say where on the remote the light sits, because it varies by model — on some it is on the front face, on others inside the battery compartment.
The "blinking green" phrasing is real-world observation rather than published fact, and it is consistent enough across models and forums to be useful. It is worth knowing the difference, though, because a page that states a colour as gospel will send you looking for a green light on a remote that flashes something else entirely.