>>30697835I'll bite
It didn't take the good points of Emerald and incorporate them. That's literally it. The additions that were made, both cosmetic and gameplay wise were generally pretty good, it just fell flat because the obvious comparison was to Emerald and it felt lacking. I'm not even bothered about the battle frontier personally, but even the improved enemy teams and rematches being gone really sucked.
It was a still a good game, but it could have been great.