Like everyone else on the planet, I think that decks focused on creature types are a fun and cool part of the game. Personally, I'm not so interested in the fusion of Commander and tribal synergies. I like both separately, but don't see much appeal in combining them. However, I'm in the minority here and I think "more tribal stuff" was a popular request for commander products. The goofy cat/everything hybrid stuff is very stupid and, as far as I'm concerned, cannot go away soon enough. We need to kill this crap dead before all griffins become "Creature — Cat Bird" and all manticores become "Creature — Cat Scorpion." But overall, these decks look good and I'm glad that they found a way to make a five-color Commander precon.
I have this vain hope that they'll take a break from these decks and maybe change things up next year. Commander's Arsenal was
awesome, but people aren't asking for more because they tend not to have even
seen it. How many people besides me even managed to pick up a copy of it? Ten? Twelve?
But seriously, Commander as a format is getting overloaded with the annual introduction of special cards and mechanics built around it. The whole idea originally was to take cards that were designed with an entirely different mode of play in mind (mostly 40-card Limited decks and 60-card Constructed decks). So Commander was an alternative way to play with the same cards you could play anyway. But the cards in the precons are often very good in Commander specifically, and that messes with the format. Individually, the special mechanics aren't bad for Commander, but they keep piling on in a kind of power creep year after year, and I wish they'd stop. I know it's not going to happen. These things are easily the best precons that WotC put out anymore, they actually play well, and they sell like hotcakes.