Then by this logic, due to RNG factors, there was 0% chance that the entire team could extract from the moment we stepped foot in the match.

Enough portals simply did not spawn inside the circle in a means we could get to them.

Which is something that should probably be addressed, either by offering static extracts, allowing the whole team to extract, removing the circle allowing the final player to progress against AI enemies to find themselves a portal, or by spawning an extraction portal in front of the last person before the final circle closes.

If, as you say, the point is to "grab whta you can and leave with very little RNG involved" then the issue is, ultimately, it is 100% dependent on RNG with no agency by the player to change that.

In chess, you can control the factors. Here, it's just kind of "oh well, you did everything you could but still failed just because."