I heard grapplers saying it has definitely become more difficult for them as they can "feel" less with their hands...if it bugged them, I wonder how hard it would be doing something like sliding your hand in for shihonage?
That's my point. If you define shihonage as something that requires you to manipulate the other persons hand a certain way with a certain grip, then the gloves will be a problem.
However, if you're looking at it from the perspective of entering in such a way that it fixes their arm/hand in a spot by which you can enter/move again and put them down in any direction via that connection with their arm, well then then the gloves may help maintain that connection.
For an example in MMA, watch how Karo Parisyan sets up his judo throws in a no-gi setup and you'll get an idea how this can work.