OP got it exactly right. The first PvZ:GW felt more... intimate. This one feels more chaotic and you have less control and impact on the match.
Now in multiplayer, you can get quickly mowed down when you barely leave the cover of your spawn area. In the first GW in GvG mode, you have to travel across the map quite a ways to find the action. The map felt larger and positioning felt more strategic. Encounters with enemies were often 1 on 1 and were intimate battles of skill, who had the better aim scoring the headshots? who had the better strategy? It was easier to sneak up on people and catch them completely off guard by going the long way around. I used to love playing Chomper and baiting an Engineer on a jackhammer around a corner to catch him in a spikeweed to eat him. If an encounter wasn't 1 on 1, this meant that you were fighting for a strategic position such as the teleporter, or the garden. In this one you seem to die a lot faster. This game it feels like you are getting shot from multiple angles at once way more often.
Don't get me wrong, I think GW2 is a better game overall. I love the experience system, the "backyard", the fact that you can defend in GvG mode as a zombie, and play vs. the AI as a zombie, but when it comes down to the multiplayer PVP experience... the first one had a better feel. Hopefully an update can help.