They aren't lazy...
They just don't have enough Dev's...
Also, MTA was only made for Windows; if it was made on iDevices or Apple-Devices, then it would be easy(i think) to port it to any devices on Apple.
I can't really explain it for the Dev's, so they would need to post something for you guys.
That's true, but people try creating new servers everyday when you think about it, and because of MTA becoming more powerful with scripting, the servers are becoming more better and advanced, leaving the beginners to learn longer and have more ideas while learning MTA.
It's MTA you would need to reinstall, cause the MTA stores something on the computer when it's first installed, and if you move the program to another pc without reinstalling it, then MTA would not be able to find the stored thing on the new computer.
I'm not sure if you could try to give MTA an exception for the Anti-Virus program you have.
If you can, then add MTA to the list then try MTA again, other than that, contact the official website of that Anti-Virus program.
As much as like "Let's Play's", this one seems a little boring, like there's nothing funny in it, there's not that much action, and you barely talk, only when you're killing or something interesting is happening...
Just telling the truth you know.