You say we weren't scoring no matter what the rest of the game no matter what, but:
a) there are plenty of games that look like that and, magically, a goal does get scored because this is a strange sport where spontaneous things can happen
b) if we were level on points with Milan vs. being two points behind, the difference is Milan has the pressure on them to win every game. As it was, they could afford one draw and still be ok. It turned out they won their remaining games anyway so it didn't end up mattering, but there was a brief moment in Verona late in the season where they trailed 1-0 near halftime (Verona were a decently good team that year) and the pressure would've been different if they knew they needed to overturn that into a win vs. "well, a draw here isn't the end of world".
So to minimize Radu's error into "well, do the math on the final table" is too reductionist.