A couple of hours? I solo baracoon spawns in 30 minutes, rikktor spawns in 45 minutes...and this is on siege where anything I wear is lootable so I can't fully deck out my armor and carry multiple weapons. With 2-3 people you should be able to do the entire spawn in 15 minutes, tops, 10 minutes if you're suited for pure pvm.
If most are playing wow also, it's unlikely they enjoy UO anyways, the games are so radically different that you can't even compare the two, wow is basicly the ultimate level based grindfest, may as well say they didn't enjoy UO so they started playing Call of Duty instead.
I'm actually learning the so called "endgame" in UO so it takes me longer than someone who is playing for years. I didn't play this game since 2000 and only recently started (4ish months).
I can see how much harder UO is for a truly NEW player though. I play with some and they have trash templates as they only recently started this year.
PvP was forced upon you prior to Trammel era and I was actually not that bad at it, but never liked it much. You just had to PvP almost all the time. It seemed silly and inferior to games like Quake back then, when you could frag away and have a good deal of fun.
When they created Trammel, they did the right thing back then. It saved the dying game which suffered a huge population loss due to PKs and griefers. But from what I understand, they began to gradually add the need to go to Fel from time to time to please the dwindling PvP crowd.
The only problem that prior AoS everyone was 7xGM in exceptional armor, carrying pots, bandies and reagent bags. Right now PvM and PvP are so different and most PvE temps are sitting ducks in PvP. Take tamer-bard or sampire for example. They can't do squat in PvP but are very strong in PvM. Defeating one is easier than beating 5yo child IRL.