Nexon listened and only put out 2x event on really special occasions.
Holding them less frequently will most likely make them more laggy because everyone is under more pressure to take advantage of it. Less frequent means you can't miss it.
Reboot is harder, but not for any reason mentioned. It's harder because the 'hump' which turns the game into "easy mode", is much higher and much more difficult to get past on reboot than it is in regular servers. The hump being the point at which you can OHKO mobs on the best training maps.
Except you don't need to 1 shot to grind faster than in normal servers.
The whole problem with reboot vs normal is that reboot has much more room to grow, while normal servers cap out early with our low health low exp enemies.
Your whole point would only be true if you needed all this extra gear for the same exp, or in other words if reboot had HP increase but no exp increase.