That week of excitement was always something to look forward to, and while it's good that E3 is gone due to all the issues it had, the actual strength of E3 for non-visitors was always the conferences that aren't even strictly part of E3 anymore in the first place.
Summer Games Fest promised to be that but a bit more spread out, but with such a loose plan, and so many of the reveals being disconnected, it's a lot easier to just phase over the things that don't matter to you. Part of the fun of E3 was seeing things that made you think "why are they showing us this" (like EA showing mobile Command and Conquer) or seeing companies showboat terribly (Bethesda every year pretty much). That's basically not been a thing with SGF because you can pick and choose what you watch and the pacing of there being something huge nearly every day for a week isn't there either, so part of the charm is gone.
However I think if SGF is given time and lives up to the promise and benefits of a digital event more as it goes on, I could prefer it to that week of excitement E3 had. Still, a bit of condensing of it would be appreciated.