Rag doll ... As in throw round like one :)

Is it right that ground control is stacking in this way?
For the damage it does, the lag it can do, stacking maledictions seems a bit much. This was from one successful owaza and 3 throw ground controls. (IE every ground control maledicted)

-31 dex from ground control
-6 strength

Spell: 'bless' modifies save vs spell by -4 for 20 hours.
Spell: 'bless' modifies hit roll by 2 for 20 hours.
Spell: 'protection from good' for 18 hours.
Song: 'canticle of the gods' modifies save vs spell by -9 for 18 hours.
Song: 'canticle of the gods' modifies hit roll by 5 for 18 hours.
Song: 'charismatic prelude' modifies charisma by 2 for 10 hours.
Skill: 'ground control' modifies dexterity by -8 for 8 hours.
Skill: 'ground control' modifies dexterity by -8 for 8 hours.
Skill: 'ground control' modifies dexterity by -7 for 7 hours.
Skill: 'kotegaeshi' modifies dexterity by -7 for 6 hours.
Skill: 'kotegaeshi' modifies strength by -7 for 6 hours.
Song: 'anthem of resistance' for 4 hours.
Skill: 'ground control' modifies dexterity by -6 for 3 hours.
Skill: 'ground control' modifies strength by -6 for 3 hours.
Skill: 'recuperate' modifies movement regeneration by 7 for 2 hours.