Yes, the voice of Gabi is really enormous getting used to, it no longer sounds kinda like a sweet girl, but - yes, but - annoying bitchy. The criticism of the voice actors of their parents is entitled. As much as you get used to even the voice of Gabi's father, now it sounds unfortunately like a grandpa.
That, however, a reason explained that we knew adults 20 years ago, is not an acceptable reason to criticize this radio play for adolescents. In superhero comics which is for example a normal operation, it is after all also younger and new readers (in this case listeners) be given the chance to understand everything.
The story I find frankly really good. Cyberbullying is a topical issue and also the dispute among themselves are the gang of four times to shame. And logically, the lousy mood, given the circumstances also.
The whole thing you just have to listen a little to the ears of the actual target group sometimes. I liked the radio play very much and I decided to go back to collect TKKG sequences. :)