I agree that incipient awarness is OK if low speed is the only way to get into a stall.
What about a violent change of direction to avoid another aircraft, flying through the jetwash of a mil jet or even inadvertant entry into IMC. all can result in a spin with little or no time to do anything about it.
Another thing is those unknown corners of the operating envelope.
A Grob115E will not actually stall in the classic sense (G break) when entered the normal way. It simply sits nose high with a high sink rate.
But leave power on, bank left or right and pull, leaves you with a spectacular and interesting full spin entry.
Of course it being a Grob if you release the controls it will return to its normal business of aviation almost as quick.
In the end it comes down to personal preference. I am glad I did spin training and refresh it every year with an instructor. I find it great fun, it seems to speeds up my reaction time and gives me more confidence in both what the aircraft and I can do when required.