Xavi was TikiTaka himself.
Regarding Iniesta, he was awesome.
But as some others have said, he was a part of a perfect machine:
1. Messi, GOAT of all time
2. Pep, the best coach for us ever
3. Xavi, TikiTaka himself
4. Iniesta
5. Busquets
6. Dani Alves, one of the best RBs ever
7. perfect circumstances for our system to shine (Italians were bankrupted, EPL wasn't as rich, PSG hasn't existed in a current terms, there were no oil teams)
Both with Busi and Iniesta, a part of their success and skills is overrated and inflated due to playing in the best team, surrounded by perfect players, coached by a perfect player and playing in a perfect time with not as many physical teams or rich teams like today.
The same as how Busi was a GOAT during Pep surrounded by Xavi, Iniesta, Messi and Alves, but after that he kinda turned into meh, the same could be said about Iniesta:
Before Pep he was not as a good. During Pep and during a perfect generation, he was awesome. But once when we lost Alves and when Xavi declined, Iniesta was also exposed (the same as Busi).
The only year after 2012 when Iniesta was good was 2015, and even then we literally played without midfield and relied on counters and MSN magic.
I am not saying that Iniesta isn't awesome.
But even Rakitic looked like an awesome player in 2015 in a well glued system.
Even Oleguer looked decent in 2006, and Guily looked like a world class attacker.
A huge question is: how would Iniesta looked like if there wasn't Xavi or Messi around him?
Regarding Laudrup, he played without Messi, Xavi, Iniesta, Busi, Alves.
And managed to win 5 league titles in a row (For with Barca in 91, 92, 93, 94 and when he moved to Real in a summer of 1994, Barca's Dream team immediately died and RM won a title in 1995 with Laudrup).
Laudrup also won a CL without Messi in 1992.
And won Euros with an average team like Denmark in 1992, where Denmark didn't even qualify for Euros, but due to a war in Yugoslavia, they were disqualified and Denmark entered a competition literally without any preparation for a tournament.
I am not saying that Laudrup is better.
But with all players from recent era=there is a huge recency bias.
Also, a legitimate question is=how many of these players were system players, who were good, but who looked way better due to being a part of the best team ever?
A lot of players from Pep's ear probably looked 20, 50 or 100% better than they actually were, due to a perfect team around them.
About Laudrup, look at this:
After 4 years winning titles with Barca from 1991 to 1994, he moved to Real and look what he has been doing to our dream team.
He was eating us alive, a one man show against a best team in the world.
Of course that Real won a title with him in 1995: