What happened to 20-minute laning phases?
Serious question. It's incredibly annoying when you're trying to farm in lane at 10 minutes, and then something happens that triggers Teamfight phase. It could be as simple as a gank, and then the bot lane follows the JG back to mid to push the tower. Soon enough, it's teamfight phase at 12 minutes. Before S6, lane phases were relaxed, and lasted well beyond 15-20 minutes; sometimes even 25-30. Teamfights only happened when one lane won/lost.
I was playing Jhin Mid today, and I was barely level 9 before their ADC and support came mid FOR NO REASON. I wasn't even overextended; I was under tower, and our bot-lane minion wave was pushed to their outer turret! In response, our JG and top came to mid, and before you know it: 5v5 teamfight at level 9. The worst part? This teamfight lasted 40 minutes! It started at 15:00, but we didn't even win until about 54:47. It's the most annoying for the mid laner b/c he/she can't get XP with everyone in the area.
Can someone answer my question? I don't understand how teamfights used to start at 20-25 min and now they begin as early as 15 minutes (at least for me).