No you don't. I flew from CRP to IAH and had just over an hour of connection time for my Lufthansa flight to FRA. I got to the A380 gate at terminal D from terminal B via the terminal connecting train on the sterile side of security prior to the start of boarding. The only thing I didn't like about it was United Airlines put the wrong gate information on my ticket. They put the gate number for the upper deck which is only for premium classes, so I had to be directed to the correct line.
Because CRP is such a small airport, I only really needed to be there an hour prior to takeoff. The security lines at CRP are rather short, so if you're not there during the early morning rush hour, checking in 30-45 minutes ahead of departure is adequate. It's a lot less hassle than driving from Corpus Christi, parking in a long term parking lot. Taking my maxed out bags from my car and putting them on a shuttle bus, riding to the international departures portion of terminal D, checking in, going through the security gauntlet, walking to the gate, and waiting to board. I can be let off near the check in counter at CRP and never have to handle my checked luggage again till I get to my destination.
I’m talking about the initial boarding.
Bottom line, they need to have separate boarding and security for this plane...otherwise I think it be unfair to these passengers. It’s definitely a special plane.