I too hope that the tiny maintenance ladder is soon to be replaced for cargo aircraft. It's just not realistic at all. Think about it, how would any pilot be able to use these if they have some luggage with them?
I'll repeat again my last reply:
Between having passenger stairs on a cargo plane, and a tinier ladder compared to a more solid one (like the one in the video I posted, which I still consider to be a "ladder", although beefier), the less realistic choice would be the first one.
Which doesn't mean the ladder won't be replaced, but we won't put the highly unrealistic passenger stairs right now just because someone asked. It's *because* someone asked (complaining the passenger stair was unrealistic on a cargo plane), that we have a ladder now. It took some effort to listen this that suggestion so, please, just wait, and we'll eventually add a 3rd type of stair.