This is just one part of it.
He has direct contact with the exchanges and he could easily sway them to list his TRC10 shitcoin as the new Steem even if we dont fork.

And we must not fork until we are sure exchanges will continue to list us.

Having hold of the top20 witnesses is the first line of defence. If we cant hold them we need to fork but regardless of anything the community needs a contact with exchanges.