Congrats and glad you're able to find work again!
But when it comes to cancelling, it's always up to the MSC whether to follow their policies line by line or use their discretion on a case by case basis, just like how it is in other fields of business. These companies didn't see you as a threat that hurt their projects and / or they don't see any red flags from you cancelling, hence, no punishment for you for cancelling.
Shopping the Greater Denver Area, Colorado Springs and in-between in Colorado. 33 year old male and willing to travel!