The complete tenebrium discussion, flaring up again and again, beats me. Why?

1) Everyone and his mother is complaining that nobody gave him a planning schedule for level 21 at level 1. Wow. For me as a newbie the idea alone beats the purpose of a RPG, but that is just me.
2) All skills are far from useless between level 1 and roughly level 14, where the first point in tenebrium is available. Quite honest - if somebody did not learn combat tacticas up to the point where every fight is easy (!) then, what is he going to do with a few damage points more? Nothing.
3) And even the damage points are highly questionable. Every time I compare a Tenebrium weapon with hand crafted gear (crafting 5), with sword of planets or with a level 11 staff boosted by +2 intelligence I refrain from tenebrium. Furthermore looking at the resistances of late game opponents, what do I find? Exactly, tenebrium resistance.

I take a bet anytime of the day that a sword of planets or a legendary boosted by crafting beats any tenebrium weapon I have seen in 4 playthroughs so far hands down. Anyone up for the challenge for equal damage skill (intelligence, dexterity or strength)?

Regards,
Thorsten