The real reason to hate Red Mage is because they have no level 70 job skill. It's the same skill from level 68 copied in the name of job mechanics. It was easier to deal with when it was just Verfire and Verstone, but there's nothing to look forward to from 68 to 70.
They should have given the skills different effects. Also, no, a 20% chance to proc Verfire vs Verstone is not a different effect. It honestly makes no difference which one procs. Likewise it makes no difference whether or not you use Verflare vs Verholy. All differences are simply imagined. Disappointing....
If they wanted to do it this way, they should have created a two other melee chains with different effects (so three total) and let Verflare or Verholy be the gateway to its respective chain. Would have at least made the job a bit more interesting....