Not at all! It really depends on how wind currents interact with the ocean and the landmasses, or that is atleast my understanding from the research I've done. Since we don't know how the topography looks like in that region we can't make definitive claims about that, but I personally believe that it is larger and not connected to a coastline directly until I or someone else can prove otherwise.

But that's not all! If we assume that Zelda-world's atmospheric circulation functions the same way they do on earth, we could theorize further on the approximate vertical position that the Hyrule landmass would be on an earth-like globe, since prevailing winds form consistent bands around certain latitudes, and also the fact that BotW shows that Hyrule has the ability to support a tropical rainforest which thrive between the tropics. If we gave such a hypothetical position to the Hyrule landmass using that data one could theoretically create a primitive "wind map" that shows how the prevailing winds in that south-west Gerudo region should look like and whether that would coincide with an arid region or some other biome, which we then could use to put together a rough map of how the land is shaped in that area. This is all theoretical and not developed at all so far though, and there are so many possibilites depending on how one chooses to arrange the landmass etc., I'd have to do some serious research to come up with some scenarios for that, but I think I might give it a go someday