Jake certainly hadn't said his last word. However, he did know when he was at a disadvantage. Maybe an opportunity would have come along eventually or a few lucky shots would have allowed him to reach the other Flying Digestors, but he could not guarantee it.
Just for that alone, he did not regret refusing to absorb Lucia's Myrmidian bloodline. Simply running away with his tail between his legs would probably have caused him to lose 20% of his stats considering the strength of the Myrmidian pure blood.
To avoid the inconvenience, he would have been forced to fight until victory or death ensued. This severely limited his options, and for a rational person like him it was a risk he refused to take.
After sprinting for several minutes without stopping, he finally slowed down to catch his breath. With his Aether Strength and Agility at 200 points and a stamina quadrupled thanks to the Digestor's blood, he had briefly reached 700 kilometers per hour.
It may seem predictable the blow of the damsel in distress, but it had to happen sooner or later with the signs left before. The Oracle simply forced it.