Of course there is a sub-text. They are complaining about the numbers so clearly they think the 1 in 10 (and let's remember that other recent articles claimed 12% is 1-in-10 when it is in fact 1-in-8) is somehow the wrong number. Given the tone of the article it is fair to assume that they think the number should be higher. How is it to be higher? There are only a few possibilities:
1. The courts should convict more often.
2. The crown should lay charges more often.
3.  The police should refer cases to the crown more often.
They give no reason why any of these things should happen other than that women are making X complaints and only getting Y convictions. 
In fact they complain that only 1 in 10 offenders is convicted - the only way you can get "9 out of 10 offenders getting off " is if every complaint should result in a conviction.
In other words just what RKJ said - they are asking for more convictions based on nothing more than that a woman complained.