In this debate about league tournaments vs Champions league and how CL is random, knockout, based on luck etc.
Well, even World cups, Euros and all NT competitions have a knockout stage with even harsher rules (only 1 match compared with 2 matches in a CL), so, WCs and Euros are way, waaaaay more random and luck based than a CL then.
Yet, a WC is considered as the biggest prize in football.
Also, about knockout tournaments vs league competitions, one thing to consider:
= in league tournaments there are no "life or death" matches usually. Except El Classico and a final rounds of a season if leaders are tied on points.
You can fail and lose how many times you want in key matches and still be a champion if you won against crappy teams (Leganes, Eibar etc).
So, you can lose against RM 2 times, AM 2 times, Sevilla 2 times and win all minor matches and be a champion.
And why are you a champion? Not because you won against best teams, but because you were the most consistent in trashing lowtable teams week after week.
I am trying to say, to some extent, you can be mentally weak (and crumble under pressure every time) and still win a league if you are way better team.
To some extent, Barcelona was known prior to 2006 as the biggest club in the world with the lowest number of Champions cup/CL wins.
I remember reading some papers in 90s and some english journalist said: it will always remain the biggest mystery of modern football how FC Barcelona managed to win only 1 Champions cup/CL in their history (that was during 90s).
We were always known for playing nice and technically attractive.
But for years, we were losing key matches in key moments all the time. In the same fashion.
And when that happens 5 or 10 times, it can't be a bad luck. It is just a lack of mental strength and a lack of winner's mentality in knockout matches.
Luckily, we changed that from 2006 till today.
So, the same as how some posters here say that CL is random and luck, well, my view is that La liga is also mostly about skills and not too much about mental strength in key moments.
You can lose 1-2-5-10 matches (all key matches in La liga) and still be a champion if you won all easy matches against Leganes and Eibar (even though you lost against RM and AM both times).
La liga doesn't have "a sudden death" and life or death must win matches.
If you lose or fail, in 99% of cases, you will get another chance next week against Las Palmas or Eibar to get back to the 1st place if your opponent slips.
So, to some extent, La liga is about: who will be the most consistent against weaker teams and NOT who will be the best against best in 1 vs 1 direct matches.
So, each competition has it's pros and cons.
For La liga you need one set of skills, for CL you need some other skills also.
So, CL is also about luck, but for example, Barca sucked really hard in their last 4 CL exits on a mental strength's level:
1. Bayern 2013
2. AM 2014
3. AM 2016
4. Psg 2017
Our opponents had more courage and better mental strength in every of these ties.
