Instances destroyed EQ

[Kope]

Actually I've been wanting to ask you all about this because it's made no sense to me and I'll explain why:

I played on TZ (pvp server) where people literally fought over raid mobs. Whatever guild could kill the opposing guild as well as the raid mob won the day.

Instances kill this because there was no longer fighting over raid mobs. It basically turned the PvP server to a blue server in any raid contested mob zone. I'm not saying blue servers are bad, I'm just saying from the mentality of the PvP servers at the time, it took away the entire reason for raiding on a PvP server (at least mine).

How did instancing and safe zones hurt PvE servers? I honestly just don't see the detrimental effect.