Always? The UFC probably has the highest level of competition of any fighting org that's ever existed. HOF boxers can get sacrificial lambs offered up by their promoters. Fedor fought Zulu. Wanderlei fought Yuki Kondo. Anthony Joshua fought Pulev while Fury was an option.
Brock had to fight Couture, Mir, Carwin, Cain, Overeem, and Hunt in a row.
DC got Bones, Rumble, Gus, Anderson, Rumble, Bones in a row.
Look at GSP's last 10 or so
Conor did Chad, Aldo, Nate 2x, Eddie, and Khabib in a row
Ronda had to fight Tate, Zingano, Holm, and Amanda (although with less impressive competion in between due to lack of competion)
Dana is not coddling people just because a guy gets a step down after a loss or because the get a Bisping Hendo 2 here and there.