Couple things.
First, the Lions didn't lose based on a bad call. The Lions lost because one of the league's best Players (Kam) forced a fumble from one of the league's best WRs (MegaTron). The Lions lost also because they whiffed on two chances to Sack Russell - who made them play for 35 yards to an average WR (kearse), then 20-something yards to AngryDougBaldwin for the TD. The Lions lost because they didn't score enough points when it counted.
Had Megatron - who disagrees with you that the Refs 'lost the game' for the lions - held the ball, Lions walk in for the TD, then likely lose in the final minutes as Russell continues to carve-up the Lions secondary through big plays.
Megatron's quote: "At the end of the day I have to hang onto the ball. Can't leave it in officials hands."
Here's what happened. The back judge had his hand on the flag. He watched the Seahawk. The Ref ruled the the batting of the ball was NOT intentional. It's a judgment call. Because of that, during the half-second-or-less of what's going on, the back judge felt there wasn't the required intent. In slow motion or in hindsight, sure. Different story.
This shows why Seattle WON...The Lions didn't LOSE. Seattle WON
It's always more complicated than one call.
“… the greatest detractor from high performance is fear: fear that you are not prepared, fear that you are in over your head, fear that you are not worthy, and ultimately, fear of failure. If you can eliminate that fear—not through arrogance or just wishing difficulties away, but through hard work and preparation—you will put yourself in an incredibly powerful position to take on the challenges you face" - Pete Carroll.