I love ink resistance, I run it all the time.
As a carbon roller who aspires to reach a maximum level of sneakiness, when I can if there are tiny patches of ink I can use in a sea of enemy ink, I use them, because then the enemy won't be able to see me coming on their maps. I catch squids off guard a lot with this strategy. But it would be insane to try it without ink resistance. I also use it when I carry the rainmaker. I have a lot of success doing that too.
I also like high risk splats, I swim at someone, attempt to splat them and if I miss or it's too dangerous, ink resistance helps the getaway. Even if the opponent shoots at my feet I have a better chance of escaping. I always run a combo of ink resistance and swim speed up, so I can swim around the map madly.
It works for my playstyle. I don't think I'd ever consider changing it. Since I started using it I've become a lot more successful.
And I mean especially now that burst bombs can't be spammed. I used to throw down burst bombs to help with a quick getaway, and that's a lot more difficult to do now.