Have you heard of a principle called the SPECIFICITY in Physical Training?
As the name suggests, it has to do with your training needing to be as specific to the outcome that you are wanting.
For example, if you're wanting to get better at running, you need to run. You're not going to get better at running, by swimming daily. Sure, you may have transferable benefits with the cardio-pulmonary systems, but your running will not improve much from swimming.
Improving your spinal stability also falls under the specificity of physical training principle.
How many 'core' exercises can you think of right now?
...dead bugs...pelvic floor squeeze....abdominal squeeze....don't do sit-ups because someone said it was really bad.....pilates movements....
Out of the ones you can think of, how many RESEMBLE your position when you FEEL vulnerable?
Most spinal stability exercises are performed while you're lying on your back, or in a crawling position.
The fact is, your body is not going to take the exercises you do on your back and transfer these benefits when you're next picking up a box, gardening or lifting up your child!
The moral of the story is: stimulate your body in the way you want it to improve.
This video will explain how you might want to train for your spinal stability. (If you have the background of squatting).
Image credits: huffingtonpost.com