I think the son of Kunti (Arjuna) saw these faults in all other methods, therefore the Pandava took the maiden away by force according to ordinance.
एतान् दोषांस्तु कौन्तेयो दृष्टवानिति मे मतिः। अतः प्रसह्य हृतवान् कन्यां धर्मेण पाण्डवः॥