The Feast

[Enlial]

...

You're right. We see this with "omg just dps the ice and win so I can get my mount and never queue for this again"

Why people find it less fun than running the same scripted encounters over and over and over again is beyond me.

[Zojha]

Why people find it less fun than running the same scripted encounters over and over and over again is beyond me.

Some people do not like competition - they like it when everyone gets a slice and the good don't prey on the weak. In PvE, you can win 100% of the time, in PvP, you ideally should win no more nor less than 50% of the time.
Some people do not like playing against healers/constantly replenishing health bars and the burst meta that results from them. Burst or bust does not appeal to everyone.
Some people find it annoying to constantly run after people, especially with sprint involved, doubly with latency.
Some people simply hate being unable to act for extended periods of time - CC is used very sparsely in PvE and typically as failure for messed up mechanics.
If you have like 130ms latency like me, you can also enjoy being unable to hit people that are displayed well in range - in PvE, that latency is a non-issue in 99% of the content.
There's also the community of course, which can be somewhat appalling and ups the pressure - pressure which many people do not want in their pass-time activity.

I can think of many reasons why people don't like PvP in FFXIV. But are they significant? Maybe one or multiple of them don't matter at all! Until you know, though, you can only change things blindly and hope it hits the spot.