Just played with 4 other solo's versus a 5 man premade in normal draft on NA

OP.gg shows all 5 as being queued up on the enemy team. 3 were in the same clan as eachother, and the two that were not had recent games with some that were. No one on my team was in the same clan, nor did they have any recent games with eachother. I understand that having 2 ranked queues and a normal draft queue can stretch the playerbase thin, but NA isn't that small of a server. Surely I can play against people that don't have a massive communications advantage.

Or at very least, go into the game knowing that they're a 5 man. I had no clue until halfway through the game when I decided to check. They rotated, invaded, did a 3 man bot at level one, then the jg showed up mid without even taking a camp. Don't get me wrong - I played terribly and take full responsibility for that (it's my 3rd game since early January) but a warning that I'm about to play against more coordinated players would be nice.