NO. It was the detector that alerted you to metal under the ground, period. Your knowledge and your experience and the probability of a good target is all up to you to decide to dig it.
If you leave it because it is just a zinc penny and your buddy right behind you gets a signal and digs to find a huge gold ring, it is not his machine that decided to dig it. It was his knowledge and his wishing to know what his detector alerted him to.
That is it in a nutshell! If you know YOUR machine then you will find stuff. I had a Compass RM-7A for my first detector. Big, heavy shoebox thing but I took the time to learn it's whispers and pulled a coin that the previous owner said I COULD never find with it. An 1852 trime proved to me that the knowledge of the machine is very important. My favorite machine to this day is the Garrett Groundhog, I have not equaled it in depth with any machine I have used. Now that may be because I have not gotten my coil over something as deep as a quarter at a measured 14" (yes I had a tape measure on me, and I know I may have dragged it down a little) but the find was there and had no nicks or digger damage on it. I think the reason I found the deep coins was due to the threshold and not having a VDI screen, and had to trust that the machine was whispering to me.