The white flag

1. I second Resistance. Get Finn a zeta, make sure Poe goes first and is speedy, and watch the magic happen.
2. Play around with different teams. If the team you are using doesn't work, try something else. There is no unbeatable teams. Sure Chaze is a pain, GK&Zarris is not much fun either, zMaul can be frustrating, CLS-teams are just ridiculous, and so on, and so on. Find a way to beat them. When you do, you'll feel like you really achieved something.
3. Sure, gear takes a lot of time to grind. But it is still possible. Create your dream team, and work on only 5-6 toons. You'll get there.
4. Of course things change. Otherwise it would just come down to racing to getting the best 5 toons first, and then the game is done. Not much fun in that ... and not much revenue in that for the developers.

For me the game is all about progress and trying to beat the meta with what I have. It doesn't always work out, but when it does it is awesome.

And if you want everything at once, just become a whale.