I started to post this same quandary yesterday afternoon. I've never seen sweet corn sucker much, maybe a few plants.
Just about every stalk has two or more suckers coming off the roots, in my garden, but then I planted a different variety for the first time, Peaches-n-cream.
Went looking for answers on the net. I found that the SE and SU type hybrids do typically make suckers from the roots. New to me, but so are these "super sweet" hybrids.
I cut back all the suckers off the first I planted when I was hoeing the rows a month ago, but they grew right back. :roll:
It's been too wet to tend the garden for about three weeks. Every time it was just about dry enough, rain came again.
Yesterday I got into it and tamed the weeds, but still it was too wet to get a tiller through it. Maybe today I can do that.
What I planted Good Friday is tasseling and making ears, though it's only three and a half feet tall.
So, no Jim, it's not something weird that's happening to you. The weird stuff is happening to me as well.
On the other hand my maters are loving the warm wet weather. I've got several Golden Jubilees 4" in diameter and still dead green.

Also you mentioned something in a post about your mellons not germinating well. I had that problem too.
A week after planting a few came up. Just the past few days, three weeks after the first very few came up, a bunch more sprouted. :?
Seems this weird weather we are having is doing weird thing to garden plants.