100% agree, it's not the money, it's the time and hours people put into the tournement.Some people don't want to do the unbelievable amount of work that long tournaments need. It is understandable because it is so much easier to just do a one or two days tournament and call it a day. Simple things like having the tournament for 16 or 32 players instead of 64 is already cutting the amount of work immensely. Just the highlight videos of previous days that Memb is showing is probably rivaling the amount of work of a whole short tournament.
As @polyomavirus said, having it on weekends mostly seems like a good idea too. Following something every day of the week is an impossible mission for most.
The difference in the experience for both the players and the viewers is clear. I don't care if a tournament has a €30,000 or even €100,000 prize pool when it is played on a couple of days only. It will still feel shallow to me when you compare it to a longer one.
Anyway, this is probably in the realm of subjectivity. It is a personal preference so I have to admit that short tournaments can be liked better by some. Besides they have their place too, it's good to have variety.
Yo can have a 100k€ showmatch that it's over in less than a week and it's never going to be as prestigious as a big tournament.
Tradition says that each round should be a week, therefore hype is created and spectators remember the duels and games.
And that's the biggest fail of RBW, too many games compressed in 2 days make me tired and I forget the games. Now I remember who won, but I can't even tell the semifinals of RBW1 while I remember the semis from BOA1, for example