The replay clearly shows that Bosch is running to the outside of JJ (that is between JJ and the wing).
That means it is either JJ or the wing that must make the tackle. Given that JJ is the closest and it is his oppositive number, it is his man to tackle.
At the last moment Bosch sidesteps and slightly cuts back in. He is still right beside JJ who makes a lame tackle attempt and completely slips off him.
Jannie a prop of all people tries to make the cover tackle by running behind the tackle area, but it blocked by a swinging JJ who turns 360 degrees.
It is a shit tackle and it was JJ's man, not the missing inside center or the cover tackle, in this instance Jannie the prop.
It is surprising that Bosch did not cut in earlier to take on the gap that was closing by the covering defender, but then again JJ would not have been able to tackle him in a phone booth- given how close he was when he stepped JJ on his inside.
At one point JJ has his arms around Bosch, come on- all he had to do was hang on.
You "gave" us JJ Engelbrecht, it was not actually Hieneken Meyer who invited him to the Bulls and suggested he move from wing to outside center.
Hell Saffex you "gave us" Eztebeth and Jan Serfontein- you indentified them playing for the under21 boks.
Without you these players would have never have become Springbok greats.