I agree. There shouldn't be customer cars in F1, unless it goes back to the days where anyone can buy a car and enter, to make it fair. Otherwise, the WCC would have to be thrown out, because half of the field couldn't technically participate in it.
Also, it bugs me when people don't mention Red Bull in this row. Now, I absolutely love Red Bull, but like Toro Rosso, they are breaking the rules concerning customer cars.
I agree. It's another sign that Ecclestone would do anything to make more money, in this case by allowing anybody on the grid. Formula One should be for constructors only. If you cannot design a car and get a suitable engine, you are not worthy of entering. You also have to consider the other teams who don't have B-teams. They are at a disadvantage, for they do not have another team collecting data for them and testing parts. Sure, the old Saubers looked like Ferraris; Red Bull and Torro Rosso, Honda and Super Aguri have some symbiotic relationship going which is unfair and probably contravenes the Concorde Agreement (which Ecclestone has sidestepped in order to get a few extra teams on the grid, regardless of their worth, to make a few quid).

Ayrton Senna: WDC 1988,
1989, 1990, 1991
McLaren: WCC 1974, 1984, 1985, 1988, 1989, 1990, 1991, 1998,
1999, 2007McLaren: WDC 1974, 1976, 1984, 1985, 1986, 1988, 1989, 1990, 1991, 1998, 1999, 2008