Separation strategy. Does this works?

[Realeo]

Me and my Indonesian friend loved to have internet game of mafia. We are like 15 players, and they are this duo that if these two duos become mafia, they're literally untouchable.

I asked how and they told me the separation strategy.

We had setup:

11 VT
1 Cop
3 Framer Mafia

Cop innocent is obviously innocent.

The separation strategy is like this:

The three mafia during N0 talk (the two duo + third mafia) will try to figure out who is the weakest link. The strategy is simple: both two mafias must accuse the weakest link, while the other two never accuse each other.

What I realized is 1) this guy did a good job of "implicitly" doing the strategy. I had been mafia twice with them and I didn't notice that I am in a plot 2) this guy sometimes decided to play classic mafia--to deny any possible meta 3) The third guy is not necessarily the weakest link, one of the two duos can be the weakest link.

Does this separation strategy work?

My mind went, "Wait. This may actually work. People may assume one people bus the weakest link, but no one will see 2 people bus the weakest link?"

[Realeo]

So know your audience, it appears.