we can argue back and forth what we saw on our personal realms back and forth all day. your on eu i'm us, and im sure neither of us have played on every single realm so neither of us can give an educated conclusion on what the global or reginal average behavior was at that time.
CRZ bring the old zones back to closer what they were like when wow came out, that includes both the good and the bad. that means ganking and corps camping, that means random people actually being in the zone and tossing a buff on you/helping kill a mob when a mob patted on to your fight. competing for resources, or just a bunch of random people grouping up to quest togeather.
you dont like CRZ fine, thats your choice. i personally do