I just did this over the weekend and it is very easy and definitely works. The hardest part was finding the right size wire to use. 18g is too large to fit in the slots in the connector, and 24g wire is too flexible to push in completely. I ended up using a short (1") section of 0.035 welding wire bent in a "u" shape. It fit perfectly in the slots and it takes a pretty good pull for it to come out, enough that there is no need to secure it with electrical tape.
On my 2018 I jumped the 3rd (white wire) and 4th (purple/black wire) pins from the right.