While I agree it wasn't suuuuper serious... the tone between Tekken from Tekken 2 & Tekken 3 to now is night and day.
They got rid of the dark cyberpunk world of the mysterious Zaibatsu conglomerate holding these tournaments from Tekken 2 and 3. And it's now the adventures of Goku mishima/kawaii robot & their shitty friends saving the world from emo-lord Jin. Here are the new characters we got in Tekken 3:
Eddy: Capoera, Hwoarang: Baek, Ling: (some kind of Kung Fu), Bryan: Kick-boxing, etc.
The 6 last revealed characters Tekken got were Lars, Alisa, Eliza, Katarina, Claudio, and now Chloe.
Doesn't it say something about how different they're catering their new characters. Before we'd get believable yet cool new characters based on legitimate martial arts. Now the only character that has a martial art is Katarina while everyone else is one Anime trope after the other.
I love Tekken more than anything... but it is way too obvious that they've given up on us legacy fans and are willing to alienate us to seek a brand new demographic.