Thinning and shedding being the same, is totally false. I don't even know why there's even a debate over this.
Everybody, even non hair loss sufferers, shed every day. The average person sheds from 50-100-200 hairs a day, every day. When you are suffering from THINNING hair, when you SHED you appear to have less hair, because the hair that shed grew back THINNER. But a person who is NOT suffering from THINNING hair, can shed and grow back strong thick hair, because they are not THINNING. Some people that suffer from male pattern baldness have the curse of increased shedding, and thinning hair at the same time, so they go bald quickly. Well MBP IS increased shedding and definitely thinning hair.
Shedding: Hairs falls out.
Thinning: Hair miniaturization.
A combo of both: You go bald.
Shedding while not suffering from thinning hair: You're good.