On the subject of strategy, let's say you're on Death Island, your team has just scored to make it 14-8, and you have a convoy of 3 loaded hogs.
If you continue on:
Their team all score, making it 14-14. One of their hogs continues on, and two hogs turn. Those two hogs have to kill all 6 out of your teammates to win. Not impossible, but very unlikely.
If you turn two hogs
You now have only one hog trying to score.
Best case: the turned hogs kill some of the enemy, and they respawn to the bases where they can now nade the one hog that is trying to score. If they stick that hog and kill the occupants, your teammates may end up walking. You're likely to still win, but you may make it much closer than it needed to be.
Worst case: the turned hogs get decimated. The occupants respawn at bases, may or may not have hogs. Meanwhile the enemy all score, making it 14-14, and they turn two hogs at your single hog that is now coming around to score. They have two hogs against one, just have to kill those two teammates and game on.
There are a lot of scenarios in-between, but in a scrim against a good team, it is in no way unlikely that you would lose if you turned at 14-8.
I remember in a fun scrim once, we were on Death Island, probably winning 14-8 or 14-9. I know we couldn't really lose because they couldn't even turn yet. Went over the big jump, and I fired a single rocket back just for fun, and oops! killed a hog. Bowser respawned at sandy beach and naded two of our hogs - killed 3 out of the 4 teammates in those hogs. By then they also had turned a hog which finished off what was left of us, and we were scattered across the map, walking, off nav, and lost 14-15.