(Oops, it's not really about Camera Angle. But I keep this post.)
There was a thread, Locked Camera Discussion, started 2 years ago by boourns. I'm not sure they're still working on it.
Let me just put some of what I have posted and found in In-Game HUD Discussion community. Will be a long post, but it's about supporting this thread.
This is a part of my post in Locked Camera Discussion. This is about what you get right after hitting the space-bar. Oh, I'm trying to l2p unlocked. Please don't hurt me.
After looking over the map, or just failing in moving the camera to the correct position, I usually hit the space bar to have camera on my champion... If you do so, a Blue player would get somewhat 'okay' or 'good' vision right away, while Purple wouldn't. The same happens when going for a bot-lane gank (regardless of the team).
Also, a post (not mine) pointed out something about game-playing fun, not skill... and I totally agree.
the game itself becomes extremely unfun that way, and myself and many others do not like RTS games, not because they're hard and its hard to use unlocked camera but because its not fun. when i play league i want to play renekton, not "a guy who commands renekton around" and im sure im not the only one.
This is my post in one of those threads about purple locked camera. This post is about not-so-high level games.
"Just unlock camera" - I have seen this thing so many times...
Yes, I suspect sufficiently skilled players can unlock camera without sacrificing any other skills at all (or, can anyone? I wonder.)
But how about not-so-skilled players that perform by far more poorly with unlocked camera? Riot made a skill-based matchmaking system, so I suppose they are trying to let newbies enjoy the game, then this purple camera problem shouldn't be a thing.
Can people still say that, "Just unlock camera" thing, to one (well, it's me) who thinks there are hardly any players that can unlock camera well enough?
And this is another post (not mine). This problem, more about purple team than locked camera, will be fixed when they release new SR map.
"Just Unlock" doesn't change the fact that blue has a better field of view than purple. The view is much narrower at the bottom than the top, so it takes more effort to keep the opponent in view. Additionally, the position the camera snaps back to when you press space is completely skewed towards giving blue a better view. Blue flat out has the vision advantage, locked camera or not.