There's actually not a whole lot to complain about here, MS/OP/Slam usage is where it should be. Heroic Leap used properly.
HS could probably be a little bit higher. 4t13 CS proc overwritten a few times by manual CS.
Cooldowns in the start wasn't fully synced with Golemblood (a couple of seconds missing), didn't matter much here but it matters more in fights where you'd use Reck in the start as well.
Should have been able to use Berserker Rage one extra time, maybe Inner Rage as well.
All in all you did a very good job in this log and this stuff is just minor improvements.
Whoranzone already answered your second question but I'd also add to that that I usually use the "buffs cast" instead of the "buffs gained" tab because that way you only get buffs that you personally applied (which results in a muuuuuch shorter and easier to read list). Sometimes you may be looking for other things that won't show up in "Buffs cast" (like tricks of the trade), in those cases you'll have to resort to "buffs gained" anyway.