Section 53 IPC: Abettor Present Giving Aid - WTH?!

Mujhe Section 53 IPC pe badi mushkil hai. Okay, abettor ka kya hota hai, dono cases ke rules theek theek hain, but kyun yeh section ekdum contradictory lag rha hai. Abettor present hai to woh aiding ki shikaayat karenge, but agar abettor absence mein aiding karta hai to woh abettor hi hoga?! To fir aiding karke, woh abettor hi nahin tha? Main samaj nahin sakta. Papa ne bataya ki yeh section 19th century ki baat hai, jab laws pehle hi galat the. Lekin ab main samaj nahin sakta ki yeh kaun kisi cheez ko samjha rha hai?