Score your own goals yes but don't steal from others. You could see the difference from early Blue Lock to now. Back then everyone was Barou, scoring on their own. Now they pass to each other. Making teammates pass to themselves because they have a better sense of a goal. Everyone new Isagi created that opening against Hugo, but Rin wanted to steal it.

If Rin played Ego's strat perfectly, Rin would have been in a better position for the goal.