Disclaimer; Johnqt should play sentinel, not init imo because his sentinel is one of the best in the world even while calling.
When your playing sentinel, your often lurking on attack or anchoring on defense. This means you’re almost always on the weak side regardless of t or ct side. Playing the weak side means you need to be really aware and focused on ur crosshair; if you make a mistake and die on defense, you give up ur entire site. On attack, your team loses crucial map control if you die for free. This is quite difficult to do while also calling and looking at minimap.
On initiator, on the other hand, your playing with the group, so your teammates can prevent you from being caught of guard while mentally distracted or looking at minimap. You also don’t need to win 1v1s, as you can either get trade kills or get traded. Additionally, actually being there for retakes/site execs/floods allows you to micromanage utility, your teammates, and the timing. If your on the other side of the map, your totally reliant on ur teammates comms and minimap info for this part.
This is why a lot of IGLs want to play init. I don’t think it suits all of them, but it does make sense