Oh man, Turf War philosophies, I've given a lot of hot takes about this on stream.
You'll always have the chance to touch up the area around your spawn later. Even if you never die, you can jump back to spawn near the end of the fight and paint. Controlling the middle of most maps is going to be super helpful.
I don't care about killing or not, but I wish people would stop saying this, when the opposite is more likely to be true, and in especially close games, shoddy base painting can still lose you the game. If you have to paint when you die, what does that mean if it's in the final minute and you end up giving away crucial ground? This happens all the time in GAF matches. The aggressive team will take up posts at the usual spots and at most half-heartedly cover the home base. After a good minute of straight domination, someone slips out and paints their base, they crumble as they try to do both, and the other side narrowly wins. There has to be a point when you trust your teammates, but I don't think base painting is one of them.
In randoms, I usually know I'm gonna win if I start my usual routine on the base and look down to see the rest of the base is essentially covered. Those teammates are people who know the pains of seeing their hard work fall apart because their point man tentak is aimed 90 degrees at the ground.