Then why raise the desire for seeing Warrior Blade on a compilation disc when compilation discs are known to be emulation? I think you might have over complicated a simple question.
The simple answer is that the game was released officially for a home console and is available in a packaged format.
All I can do is suggest you to read a topic of this thread again. Also the OP did not request moderators to change it and he knows what the emulation is about. No grey area here.
He raised the desire because the game was not officially released worldwide, and he probably did not know about officially emulated Japanese version for PS2.