Having a disjoint DNS namespace (and the needless make-work that it creates) is the issue, more than running HTTP servers on all your DCs to do redirects. There is absolutely no practical advantage to running an Active Directory domain with a public DNS name. It's all downside. It has always been all downside, and anybody who had any experience with DNS could see that all the way back in the beta and RC releases of the product in 1999 and 2000.
Having a disjoint DNS namespace (and the needless make-work that it creates) is the issue, more than running HTTP servers on all your DCs to do redirects. There is absolutely no practical advantage to running an Active Directory domain with a public DNS name. It's all downside. It has always been all downside, and anybody who had any experience with DNS could see that all the way back in the beta and RC releases of the product in 1999 and 2000.