[Dan]

All the three points are plausible

Why was there a need for LKY to file a SP which is usually applied commercially to ensure one party keeps his word in a contract?
It's seldom used over decisions or agreements in a family affair.
There were disagreements and distrusts in the family that prompted it?
Deep in LKY's heart, he knew too well what a creature LHL was?
And we have a resident mother fucker who commended LHL was filial in obeying his father's instructions when it comes to protecting his siblings.
KNNBCCB it's a court order you can't disobey asshole! Not filial piety! KNNBCCB!
Yes the word 'unwttingly' becomes a golden opportunity for LHL to whip out this SP to mitigate the outcry of the general public why the squabble was not contested in court.

Obviously washing dirty linen was the last thing in LHL's mind maybe there's more to it?
Which of the 3 is more plausible is up to your imagination.

Thanks for your reply.

Fuuck that resident motherfucker one more time for the inference in judicial meddling. KKNCCB!

And we have a resident mother fucker who commended LHL was filial in obeying his father's instructions when it comes to protecting his siblings.
KNNBCCB it's a court order you can't disobey asshole! Not filial piety! KNNBCCB!

Bhwahahahaaaaaa!!!!!