This advice is confusing

As the blue player rooting on the front left. It create a big open area on the front right. If the opponent cross drop it to the front right corner, it would be troublesome to take.

But this is badminton. No exact formula of what player must do. It simply take the risk by staying in attacking but having hard time if the opponent do good right front dropshot, or play more safe by spliting into def position.

Both you & his choice is possible, depent on self skill, partner skill, & both opponent skill. All that factor what makes player decide of what to do.