User blog comment:Xilinoc/Ch. 671 - The Perfect Crimson 2/@comment-24726378-20160422170021/@comment-5398287-20160422224050

That would require intelligence. Gerard is boisterous and fairly perceptive, but not very smart beyond tricking his opponents into triggering The Miracle, as illustrated in previous chapters. What you're suggesting is something that Uryu or Haschwalth would do. Gerard's more about that brute force angle.