The recommended treatment for this type of laceration is what is referred to as delayed or open closure.
suturing muscle is considered aggressive treatment is reserved for very special circumstances.
Muscle heals very easily and generally with little if any scars or keloids. IN particular lacerations are by definition very clean and have very little jagged un matching surfaces.
Suturing of muscle would normally be done where the edges were not able to be approximated without it.
Where muscle had to be reattached to ligaments and bones.
In order to stop bleeding from arteries by suturing arterial muscles.
Closing surgically produced wounds such as occurs in open abdominal surgery, to provide closure.
The suture needles themselves cause damage, so a surgeon would not typically sew a muscle if the needle would cause as much damage as the laceration.
In a situation where a muscle has a laceration rather than an evulsion, the recommended treatment is delayed closure, meaning no sutures, to allow the wound to heal on its own from the inside out.