I've given up complaining about the terrible respawn mechanics and just learned how to exploit them. It's actually smarter and more beneficial to hold two points in the early game, and focus on farming gold. You want to lose by 100-150 points and draw that out as long as possible while farming gold. Just defend two points and go around ninja capping and 5-man stomping the map. Then when you enter the mid game, zerg windmill. Then you can stomp the map with 3 points, broken respawn timers, and farmed carries.
This exploit works great with super-carries like Yi and KogMaw, because the deck is stacked entirely against the "winning" team. While the enemy team is defending and earning points, your super carries are farming gold and winning the arms race. Once you hit mid-game, your farmed super carries can stomp the map with 10-15s respawn timers and snowball to victory. It's so hilarious how broken this is.
Granted, it takes a somewhat coordinated team to do this, so if you're pub stomping then you have a good chance of winning anyway. Still, it's really, really fun. The few times I've done it, I've just been amazed at 5-10s death timers from zerging and riding the spawn waves.
I don't think Riot is going to fix this anytime soon, so might as well enjoy it!
P.S If you want to cap Windmill in the beginning, do this:
When you get to the windmill, kill someone right away. It's important to kill someone as quickly as possible to start their spawn wave.
After the first kill, burn down the remaining enemies, but don't kill them. Switch targets after an enemy champion gets low.
Make sure you are reckless and suicidal while accomplishing the first two, because you *want* to die. Try to do as much damage as possible before going down, but don't kill more than 1-2 champions.
If done correctly, the enemy will be forced to either /b, or likely die outside of their mates spawn wave. If your team dies within your first mates spawn wave, you will all respawn *very* quickly. You can then freely zerg windmill with a full team of fully healed champions, while the enemy defense is exhausted.
This really works. I do this all the time, and it's likely you have seen this before as well
I thought it was clever and merited a thread of its own.