Naval EC, in particular late joining - what's the point?

This mode is quite interesting but I don’t get what the game expects me to do.

I’ve got join running matches disabled, but I’m still getting added to maps where there’s already multiple 8.7s, fine it’s a low volume mode, but it’s an expectations avalanche.

defending/attacking the convoy is just a waste of time trying to get some hits on enemies before getting battered battleships.

ship agility isn’t enough to dodge shots that instantly take out engines, but while trying to dodge your own shots are less accurate and the majority of ships are invulnerable anyway so there’s no targets, no chance of getting into torp range either.

leave the map, but your squad is there so you have to wait until the lengthy round ends before you can potentially, if your lucky, get in at the start of a round.

at least when you do get in early, and your team gets overwhelmed at the convoy point you’ll probably have some points, but still it seems most maps are decided in the first few minutes.

In terms of POGG rating (Probability of Good Game) it seems extremely low, especially with the massive ships in the game.

perhaps it could max out at 6.7 (every nation has at least one, seems like a sweet spot for this kind of limit)? or at least have bigger enemy ships visible on the map? else it’s yet more depending on luck that you’ve got a teammate who both knows where the enemy are and will tell you, else it’s goodbye that 200-300SP you did manage to get - and then your out of the match?

what’s the strategy supposed to be when you join and both teams have 8.7?

maybe you’ll get lucky at the next convoy spawn?
maybe you’ll get an air superiority and manage to get a scout to it?

it’s not even possible to get 200SP for a fighter and try to get SP from air objectives

without visible timers there’s no way to work out if it’s worth staying in the match, and when you’ve spent 10 minutes trying to get somewhere only for it to expire? irritating indeed :)

What am I missing? what’s the stat supposed to be?