But when I alt-tab out of the loading screen, I expect to get put into the game on time
It's happened twice now. I load in 3+ minutes late because I hadn't tabbed back into league for a while, and I rubber band like crazy until I leave and reconnect. And the game timer indicates that I connected right when the game started (we're on the 4th or 5th minion wave, yet the game timer says 0:14 or some shit).
Small indie company