I think they should allow people to create private 5v5 games at least, outside of casual and ranked queues. PvPers already organise community events on a regular basis and this would make it a lot easier. Like this friend groups could play together, FCs/discord servers could host smaller recurring (like once a week) and/or bigger tournaments etc. Given the community spirit I think such a feature would see frequent use and would be appreciated a lot by different player groups.