APNIC would not intentionally take any action that would restrict people accessing the webcast, or participating in the Open Policy Meeting - whether it is in person, using the remote participation tools, or doing both.
The registration is simple, requiring a name and email address only. There is nothing to stop you being registered for both the physical meeting and the remote system.
Please don’t hesitate to contact conference at apnic dot net, or me personally if you have any problems at all with this registration process.