Well, if there is a silver lining in this, its that at least we don't have to put up with Brock's antics anymore, at least for this saga.
Honestly, I'm a heterosexual male as well as a christian, and I somewhat find him repulsive due to the fact that he still tries to hit on a lot of women, even during the few times where the women actually do fall for him, he still leaves for another woman. It may not be as bad as Charlie Harper's antics, but it is still quite bad. What's even worse is that thanks to his antics as well as similar antics from similar characters in the media, it seems as though we are almost expected to act like this, and if we don't, we're automatically gay even if we have absolutely no attraction to the same sex. I was a victim of this.
Other than that, the other gripe I have against Brock is that he doesn't actually follow his goal. He's supposed to be a breeder, so why doesn't he do that goal? It would be better if he actually did follow Ash to further his goal, and not because Ash and his other friends can't cook to save their lives.
I'm also annoyed at how they did his departure and return during Johto-Hoenn's transition. Like Misty, Brock also left to take care of the Gym thanks to certain problems. However, unlike Misty, Brock ended up not retaking the Gym, when really, the state of the Gym would really require it, since it was in an even worse condition than Cerulean Gym. At least Cerulean Gym had the whole issue about her sisters leaving that nearly shut it down. With Pewter Gym, most likely it would have been shut down even IF the Gym Leader was present. I mean, the gym was unsafe and uncool, for how the Rock Pokemon nearly drowned as a result of Lola's idiotic decision to add a pool into the holes, and the bad decorations respectively. Because of what they said in the Cerulean Blues newsflash, with two-thirds of that, it's almost guaranteed that the gym would have been shut down even IF the Gym Leader was present. I'm actually surprised that it still continued to function. Then we get to Grating Spaces, which had Pewter Gym in an even WORSE condition than before, since not only did Pewter Gym get another makeover, it was an even worse one than before, and Lola even went as far as to accept painters to muck it up, Painters who, BTW, had an agenda for stealing their pokemon, and Forrest didn't even attempt to lead the gym or stop that vandalization, despite being the Gym Leader. Honestly, it was just bad that the writers basically cheated it. As far as I'm concerned, HE should have gotten the Misty treatment that Misty got due to that, not Misty.