Well, everyone has strong opinions on this topic but if you could teleport with ores the game would become 10 times smaller and you'd blow through the already limited content in record time.

The devs want you to sail and sail more than once to each location. Vikings sail their longboats, it is what they do. With ore teleports you would sail to one biome each, drop a portal there and then be done with sailing for the rest of the game.

I get it though, it's not convenient is it? But hey, if everything was super convenient then you wouldn't remember any of it. No stories would be made.