Why Samsung doesn't allow downgrade binary

[Hanym12]

Why Samsung doesn't allow downgrade binary 

[Ali_Elwasief]

Because it changes the binary version. If you try with modified Odin, it will be bricked

[U_Sername]

"Because it changes the binary version" - Yes  and that's what "downgrade binary" means: CHANGING binary version to a previous one.

So  Samsung does not allow to change binary to a previous version because it changes the binary version? How is this an answer?

[Samsung Admin]

Hello. I’m Amira, Samsung Moderator
Thank you for asking the question
We wish you a happy day
Based on your inquiry regarding the update

The device is updating the software and it is not available to return the device to an old software version

If you have any other question, can you explain it to us
We are  at your service always
Thanks for your time

[U_Sername]

"The device is updating the software and it is not available to return the device to an old software version" - he knows that, he was asking WHY does it happen? like is there a REASON?