Nothing is worst than the Sindhs my friend.
A : They have no ability to produce units at the start of the game
B : very weak starting armies
C : Surrounding towns have a full stack+ of rebels...
D : When you have taken over the first few towns, The Ghorids / Ghaznians / Raphuts have already planned to invade you with a massive force. XD
At least with Armenia, The Turks are busy with ERE, Powerful starting armies, and half stack rebel cities.
and the fact of possible allies all natural allies all around, (ERE, Georgia, KoJ)
Marukia is the same condition, but Ayyubids are destracted with the KoJ,