I'm slightly bothered by the Universe 7 team outside of Goku, Vegeta, Gohan and Buu. The remaining members have all been useless in battle since probably the Cell Games and Master Roshi hasn't even managed to go "Over 9000!" in power level.
It will be interesting to see how they play it. The power level gaps are pretty big between everyone. Like Buu is very strong, but Gohan is way stronger than him, then Goku & Vegeta are off the charts in comparison to Gohan. The rest of the Universe 7 team are similar in this respect.
Master Roshi is powerful for a human.
Krillin powerful compared to Roshi
Tien is powerful compared to Krillin...etc etc. The only two which are similar are 17 & 18. Then you get to the region of Buu, Gohan, Vegeta & Goku.
So lots of vastly different levels.
It feels like they've gone for the strongest "from earth" rather than the whole universe. Like where is Pikkon? (I can't actually remember if he is dead or alive right now)
I agree with what you're saying but then again I think the arc will be decent. The stakes are high so all the fighting should be pretty decent.