Who would want the servers to crash? Except children who flip the monopoly board because they realize they cant win. Petulant children.
The strat used is kinda cheap, though I’m not sure if its intentional or just a result of trying to bring in as many players to your side as you can. It’s the equivalent of using 4 houses in monopoly and not upgrading to hotels, so that other players cannot buy houses or hotels themselves. It’s a winning strategy, it is well within the rules but not very sporting.
But why should either side be sporting? First goal should be to win.
If someone keeps using the same strat that cannot be countered, the solution is to not play with them. Or have the rules changed so that they can not use that strat anymore. (That is on blizz)
It isnt throw a tantrum and start flipping boards game after game. Which mi10 is intentionally doing by trying go bring 5 raid groups to fight RUIN when the servers cannot handle then bringing in even 3.