All non radar towers in the USA and Canada are class D. Are you suggesting there is a safety problem with this when we have jets going into places like Ballina in class G? That would never be allowed in the USA.
I know. It's all ok because that's what we did when you were trained - it must be ok!
Do you warn your friends not to fly in North America? I bet not!
And hold on. Gatwick in the UK is class D. Bet you don't have a problem flying there!
Set in concrete. Never keep an open mind to copy the worlds best. Just never ever change.