Is it just me, or are these things worse than the A/S rank hunt mobs?

I sit at the location that they pop crafting, and when it pops I'll give a shout to see if anyone is coming.

However, the last several days both of my daily FATEs get jumped in the first 20 seconds by someone who has been out of sight, and they die faster than an A rank from the time they pop.

Anyone else experiencing this?