I thought it was a very honest and straight-forward video.
I recall a situation that occurred at a "chicken-facility" in Weld County, Colorado, east of Greeley in about 1980:
When a hen's egg-production "falls-off", that chicken is "culled" and replaced by a new layer. The culled chickens often go to "Campbell's Soup Company", amongst others.
To facilitate a cleaner, speedier, "culling process", some fella invented a "Chicken Vacuum". It was Mobile (on a large truck).  The chickens would be "vacuumed" through a hose into a bin on the truck. The process killed the chicken and mostly "plucked it" rapidly.
The A.S.P.C.A. protested this method as "inhumane".  Therefore, it was STOPPED. 
(In my opinion, this is an example of "uninformed, knee-jerk radicalism" that hinders MANY advances in Commercial Pursuits......much similar to the "Environmental Hang-ups" associated with protecting a useless fish called the "snail-darter".  THAT little fish has cost MILLIONS of $$$ for no good reason.  No wonder USA business has trouble competing with China.  Just one man's honest opinion.)
No doubt there are MANY opposing viewpoints. We don't all have to agree with "outfits" like  "You know who - four letters begins with P and ends with A", etc.
Sincerely,
-Junkmanme-