I dont think it would be right to say that. If people were disappointed in said consoles then they would have had bad word of mouth and died early deaths. The 360 for example was going strong right until the Xbox One launched. The 360 was going strong for 8 Years.
What PS4 has going for it is simply extremely good publicity, while the competition have had relatively bad publicity.
Sony did everything right and "PlayStation" is the dominant brand in the videogame industry on a worldwide basis when were talking homeconsoles. What we are seeing right now is just what the brand is capable of when they dont fuck it up.