Competition level of IRC (now ERC) has been reasonably higher than that of WRC2 (SWRC) partly because of stupid rules of WRC2 where for example 2013 champion and vice-champion almost never competed against each other. They were of completely different driving level and still "battling" some strange indirect chess game.

IRC/ERC is a proven talent finding series. SWRC/WRC2 has so far failed in that point of view.