In theory, yeah, it’s a cool idea.
In practice: which streams exactly get to send representatives? How much power will they have? How can we be sure they’ll actually be active in PRESIDENTS and up-to-date on issues in this fast-paced stream?
If these issues aren’t answered properly then a Senate will simply be a way for out-of-streamers to kind of stomp all over the government and the stream citizens who elected them too.
I say no unless I see a detailed proposal that is agreeable.