Its only the GM/Host that needs to fool around with Routers and Ports, and the amount of info both on and off the FG Website/Forums to help out with this is staggering, but yes, you’re right, it can be a PITA, and I appreciate that some people don’t like to have to muck around with that stuff.
Both platforms have their good and bad points - but when we talk about Syrinscape Ben (I think it was Ben) has said that Roll20 don’t want to know (at least for now), while I know that the FG boys do - and I wrote the Extension/Plug-In to do it, so I know it works.
You’re right, that type of functionality would be great natively in Syrinscape, and I can’t wait for it to be included - but in the meantime, there is another option.
Again, just trying to help
But no matter what you decide, don’t give up on Syrinscape - I know Ben has some big plans, and I personally can’t wait - and I’m sure Syrinscape will get there in the end