RD has definitely been a big thing even before G+. I think we've had more intense crowd experiences pre-G+ than post. Especially when I think back to land openings. I just think there will always be people who love to RD and and use this to their advantage.
RD crowds will vary from day to day and park to park and may not even really be indicative of overall crowds that day. If you do plan to RD, even now, you're still ahead of 90% of guests who are still sleeping so you'll have an advantage. Outside of an attraction opening, I think most RD crowds since G+ have been pretty standard and nothing that I would say has increased since before Genie. I also think the 30 min early entry is likely keeping a lot of people in their rooms. I do miss extra magic HOURS. I presume this may still be staffing related, likely why we don't see too many pre park opening breakfast options too.