Find me recent footage of someone getting a high Style grade by doing literally nothing. Seriously, and find me where Capcom says they "dumbed down the gameplay." I've never heard them say anything like that. You can be elitist by talking about "what it takes to be good" and lording that over others and using it as some sort of guideline for what makes something fun or entertaining. KAIL is great, but I don't need to be anywhere near his level to have fun with the game, as is a game's primary point, to be fun and entertaining. As for Summoned Swords, Vergil DLC trailer already showed him using the Summoned Swords while attacking with Yamato, so we've already seen.
I also keep forgetting to mention that Jump Cancels still exist, and all the different things that can be done with them are possible. Having a better emphasis on aerial combat negates some of that need, but it's still there.
You can evaluate the gameplay, but you also have to listen to what else is being said, and see the potential. Gregaman at Capcom-Unity has shown off so many different things, different cancels. Watching Capcom-Unity videos is your best bet to see what is possible, because I haven't seen any cam gameplay that does the game justice, really :/
And maybe, if you don't want your comments to come off so asshole-ish, try going over what you say. It's really easy for people to misconstrue people's words just by text, so we all have to sort of go the extra mile to ensure we're understood correctly :s