Different experiences, different play-styles, I suspect. I have not had any problem completing the Exploration Science path since I learned how to handle Specialists and Adjacencies. On the other hand I struggle to get a full 30 Treasure Resources sent home by the end of Exploration.
BUT I am beginning to feel that part of that is my own fault, my own favorite ways to play. I play on the biggest maps I can - Huge now, which means the far-scattered Resources are Really Scattered. When it takes a Treasure Fleet 10 turns or more to get back to the nearest Wharf, the time pressure gets really intense. Add to that that it may take an extra 5 - 10 turns of searching to find the resources in the first place, and in too many games I come up 2 - 7 resources short when the "Exploration Age is Ending" message comes up. I still usually manage to get at least 2 Economic Path points, but it is frequently the only path that I don't complete at the end of Exploration.