Link was being polite when he mentioned that Romilson would take at least three years to learn a Spatial Magic spell. In fact, he should have mentioned that he would not master it in his lifetime.
There were, of course, Spatial Magicians amongst the High Elves in the game. However, they were all known by name, and the total number of Spatial Magicians amongst the High Elves never exceeded five at any point in time. Romilson was never part of this exclusive and powerful group.
Link had once run errands for Romilson while he was playing the game. Coincidentally, these missions were those where Romilson had tasked Link to collect materials required for Spatial Magic experiments. He was trying to master Spatial Magic with fervor.
However, after Link had worked hard to collect all the materials, Romilson's experiment eventually ended in failure, and he never managed to master Spatial Magic.
