1 skill = 0.9 evasion, tested and proven a while ago, not nearly a noticeable enough difference for such wild claims.
The point is a 99 THF with capped evasion with 4/4 evasion merits will not cut it for solid evasion tanking.It sure as hell wasn't the case at 75 and it isn't the case now. But it's great now with the trial daggers adding on so much evasion and decent DPS and delay on them without having to hinder your TP set.
It's not unreasonable to assume that base skill would be capped and thus you were referring to eva skill
gear, same for Krystyl's post. My response was based on that. If you're playing an eva job that you've had for more than a few weeks and don't have capped base skill, I don't know what to tell you.