Now you've generalized the matter. This is specific for maggingtons, whom I assume isn't autistic. And if he is socially awkward, that is all more reason to get irl interaction, seeing as the only cripple is lack of experience or social confidence
The situation can be generalized because any arguments for maggintons are applicable to anyone like maggintons, and vice versa.
Also, i was arguing with your point that IRL interaction is best.
Take me for instance. Despite being Aspie, i make friends fairly easily. The thing is though, that i never have time or resources to interact IRL, meaning that online interaction is superior in depth, length, and also allows more creative options, beyond what can be offered physically currently.
There are many more situations that make online interaction superior to physical interaction, and while it also has drawbacks, the online world cant simply become inaccessible so easily as any time for physical interaction.