You have to admit it is better than nothing, and with only 2 slots it reduces the amount people can ‘game’ the system.
ie. Imagine if in general I have a good Overwatch experience, but I want to climb SR. If I rarely encountered trolls or toxic people, without a small limit I could just keep adding who I perceived to be the worst player on my team, if I did this theoretically I’d end up being on a team of awesome people and just roll my way up the ranks.
This is 1 of the reasons why too many slots would be a bad thing
With a 2 person limit you’d really have to start to think how to use your slots. Sure some people will likely try game it anyway, but as soon as the first troll comes knocking, that underperfoming genji 1 trick will be swapped with ToxicTroll99 and the system will start to be used as intended.
Realistically such a system will ALWAYS be gamed, however by limiting the slots it will:
- Still perform its intended/desired purpose
- Reduce the impact on the match-maker
- Have less of an impact on OTPs/off meta players than a larger/infinite slot system
It may not be perfect, but is is DEFINITELY a lot better than nothing.