I think there need to be a distinction between the feeder cockroaches and pest cockroaches.
Feeder cockroaches are usually from tropical places where they usually don't hiss, nor can they survive in most places of North America or Europe. Most of the ones used as feeders usually can't climb or fly either.
The kind that infest your place are not suitable to use as feeders. The ones that are found in your apartments are usually German Cockroaches, or the American Cockroaches. What we use as feeders are true death-heads, fake-death-heads, dubia, lobsters, hissing cockroaches and a couple others.
The pest cockroaches are completely unsuitable for herptile-keeping, so no need to worry about that.
If you are icked out by cockroaches and prefer crickets, then there is no harm in that.