The approach plus luck produces the results. If he can't/won't change his approach, you are counting nearly 100% on luck for him to have value compared to other LFers. Counting on luck seems like a bad strategy to me.
I'd say his success is less luck and more basic physical tools. Sure, luck is involved, as with every hitter. But the guy has some physical ability. As a hitter, his success kinda reminds me of Luis Rivas. Did well in his initial call up. But really never seemed willing or able to change his approach and as a result never got better. His physical tools simply allowed him to be successful enough to keep a job until a better option came along. As I indicated before, that likely happens when the Twins feel his productivity can be provided by a minimum salary player.