This is not the worlds most powerful locomotive. The Title is wrong. You(or youtuber) should have written "One of the most powerful locomotive"
List is like this:
1. 4E5K - 17,800HP - Russia
2. Bombardier IORE - 14,500HP - Sweden
3....
more... HXD2 - 13,400HP - China
4. VL-85 - 12,500HP - Russia
5. WAG-12B - 12,000HP - India