It feels roughly similar to how it played out in Splatoon 1, actually (for now at least, the thing has been out for like 2-3 days). Sure I'll have to get used to the new maps, but even with this aggro oriented meta, you have your get out of jail free card in the form of Splashdown if you over extend or if someone gets too close, since that did not get nerfed (LOL) And Autobombs can make people move out and help you set up by keeping them away.
Chargers are still the thing that counters Hydras best of course, so you have to look out for them just as much, since you are a high priority target. But, in this game they are not as common so without Chargers in literally every single game you can roam free. Still got to play a bit more careful since the meta is super aggressive, but once you get past that it is not a problem.
On a side note....
After some reflection on that new music it reminded me of... well that. :p