Of course, why not? Many pluses with tanking still.
Pros
1) Accumulate boosters
2) Accumulate tokens (35T and daily surprise box and extras)
3) Accumulate trophies (CL and Cup)
4) Bragging rights from club history record
5) Can train a few fantastic players and manipulate the next draw
Cons
1) Win loss record looks less shiny
2) Might be sacrificing a league trophy if everyone gets promoted (Unlike Cup and CL, League trophies are limited and precious)