I strongly object to your characterization that "no one was hurt".  If you are held at gunpoint during a robbery, even if you are not shot and injured, you have trauma. There is psychological damage. Being a crime victim does that to people, even if, as in this case, the gun was empty & no one has physical injuries.  So no, being terrorized at gunpoint does not count as "no one was hurt".

Is the sentence excessive? Yes. Should it be reviewed? Yes. Keep in mind he committed additional crimes for which he will have to serve even if the original sentence for armed robbery is modified. So he's not walking out of jail anytime soon regardless.

As for your silly comment about "trump people", you might be surprised at how many conservative, Christian, GOP voters you disdain actually do find this sentence to be excessive and the result of a ridiculously overzealous prosecutor.  Not all of us "old geysers" want to see every last criminal locked up forever.  We pay taxes, too, & we have hearts.