Success with Woe is a good tool, but...If you never played TOR1e you won't miss the advantage of being able to be so subtle in setting the level of a task or test.
But is it really an advantage? Being more subtle doesn't necessarily mean being more objective.
Based on what can you objectively determine if a given task has TN 12, 14, 16, 18...? Of course, the table in 1ed gave some guidelines, but it could likely happen that a task that I consider moderately difficult is easy for you, or vice versa. Or, if I consider it harder than average (which was TN 14), what is "average"? And how do I determine how much harder exactly (TN 16, or 18, for example)?. And, I would add, if being "subtle" is really an advantage, then why exclude 13, 15, 17 from the range of possible TNs?
With +/- 1d6 of course you lose granularity and predictability (but is that really bad? Think of the predictability of a d20 roll... one might argue that low predictability has been the key to success of d20 games for decades - not my cup of tea, tbh, but many others love it), but it also narrows the Loremaster's choice down to simply determining whether that task is easy, medium, or difficult, which is objectively easier than arbitrarily assigning a TN.
And, as others have rightly pointed out, you always have to possibility of assigning a Success with Woe if you fear that a couple of freak rolls would radically upset the storyline.
I found it easier to set the "baseline" in 1e where you know that characters with mainly 3S dice pools could handle TN14 challenges with confidence but not guaranteed success (69%) and 4S could handle TN 17/18 similarly (72-65%). Mixed pools are in between. A little higher is doable because of special abilities. Then I could figure out what fictional challenges mapped to that level of competance in my mind and go from there. That was my baseline in 1e. You can adjust TNs up and down from this "competent" baseline depending on the threat relative to a party of that calibre, which I personally found easier. Still subective of course but easier for me to make quick calls and be relatively consistent.
2e is not as easy to do this in IMO with fluctuating dice pools with the very chunky d6 modifiers. Given the usual TNs from attributes, you get more ping ponging between very high levels of success (4+ dice) and very low levels of success (2 or less dice).