think about this way, if Valve would carry on the same way as Riot, we wouldnt have ESEA nor Faceit nor any proper lans where actual good teams attend, besides the majors, and the game would prolly be pretty dead on an amateur level. here we are, where every shitty small country has their own faceithub for its top players.
you act like 3rd party is bad, while 3rd party is really what makes CS shine. monopol control is never good.... see CGS, see Blast shitstorm, see the t2 tournament scene besides LCS for LOL? oh wait :D
all of those things you mentioned are aspects of competitive gameplay - whereas the main playerbase of the game is still casual, same for LOL.
People who want competition rely on 3rd party as they share the same views as 3rd party service providers who want to offer competitive services as a product.