The other thing to keep in mind....even the towncar services pick you up about 2 1/2 hrs before your flight time....not a huge difference.
So.....does everyone look forward to being in that security line for 30 minutes? No, of course not. I have yet to be in it more than 10 mins total. But, I can say, almost every time I have arrived at MCO, and walked past the outgoing security lines, they are horrendous....way back into the main concourse of the terminal. I usually arrive at MCO around noonish, so would imagine those lines are for the mid-afternoon outgoing flights. When I leave MCO it's either first thing in the morning, or late afternoon/early evening. Haven't hit those long lines at those times...yet!