As I understand it, the protest is planned for next week...............
Following the Liverpool bombing & other recent terror events, security has been stepped up at the turnstiles - as a result, it's unlikely they'll get the flag into the stadium.
The game is at 3:00 on Saturday afternoon, so there's unlikely to be any media cameras outside the ground.
It could be captured on social media, but shown to an audience who already have sympathies with the protesters.
IMO it's unlikely to have any effects in China, GL and his associates are small fry, in comparison to Evergrand for example.
The chants might be aimed at the owners, but they'll be seen as negative by the payers.
IMO, the protest is ill thought out & will do more harm than good.