It's what you didn't say.
there are two issues here. fragmentation and what that means for the future (bad for us!), and Epics shady practices and the shady company that has stakes in them. If you think it's just about games not appearing on steam then you've not really been listening because it's just not that simple. I don't care, for example, if Epic launcher has some teething issues (uplay has come on leaps and bounds, who complains about that these days?). I do care that they are harvesting data from steam, that they are paying huge lumps of cash to gain exclusives when publishers dont have their own platform to publish on OR to ensure it does appear on multiple platforms with the exception of steam (or any other) and i care about their questionable ties with Tencent as well.