and seems that dint work.
why would work now?
For the same reason Xbox OG had limited success whilst the 360 thrived.
"and seems that dint work."
PS2 owned the market before the gamecube/Xbox was even out. Architecture was so vastly different in the prior generation most important devs (Japanese) worked on a single platform basis and this carried over in the PS2/Gamecube era. ALthough Gamecube recieved third party support, the biggest titles of the generation were PS2 exclusive and designed as such from day 1. Many arrived before the gamecube and xbox even launched in 2001 or just as they launched.
GTA3 (2001), Final Fantasy X (2001), Metal Gear Solid 2 (2001), Tekken Tag (2001), kingdom hearts (2002): These are literally the biggest sellers of the generation.
The equivalent today would be if the PS4 launched a year before the X1 with COD and Assassins Creed, GTA6 and Final Fantasy XV as exlcusives. Their would literally be no room for the competition, this was pretty much the case back in 2000.
Due to the more similar nature in architecture and increased cost of production, when gen 7 came along developers stopped handing out exclusives just for for lack of caring and actually tried to captalise on their games sales potential and port to relevant platforms, note that PC ports were not at all common before the 360/PS3. This alongside a helpful year head start is why the 360 quadrupled the OG xbox's sales. The year is 2015, if developers have a relevant plaform to port their game to, they will do it. To no surprise the industry was very different 15 years ago