I guess it'd be reasonable to nerf the FJ to only get its crits when its destroyed, not self-destructed, but the concept of getting a benefit for losing your Sentry seems to be doing wonders for discouraging turtling and encouraging offensive Engineering, where previously they had to make do with a vanilla shotgun/pistol.
Yes, it is stupidly easy to stab-n-sap a Wrangled Sentry. I speak from experience.
Powerlord, couldn't you update HLStats midday? No one's ever on the server then. Wait, you probably have that mythical thing called a "job." Never mind.