Everyone's a critic, including me.
Elvis has done well to delay Bil as long as he has at BLAU. A better use of his AP mines would have been on the approach to BLAU instead of at GELB. In fact, I would have conceded GELB entirely. Rather than risk spreading a thin defense even thinner, all of his assets should have been placed in a single quadrant. His goal: to hold BLAU as long as possible before falling back to a Glorious Last Stand at ROT.
Easier said than done.