I agree 100% on both counts.
Both that TFA does indeed still hold up five years later (a half decade already, wow) and that they really dropped the ball with the opening crawl.
Every previous opening crawl gave much better context as to where the new film fit in relation to the others but if you were a new viewer just binging the entire Skywalker Saga you'd finish ROTJ only to have TFA open with "Luke Skywalker has vanished" with no indication as to whether he disappeared from the Ewok Celebration or however long after. Even with all of George's continuity errors that he himself created you still have a nice bridge between the PT and OT with the immediate appearance of the Tantive IV and the droids that we were familiar with from ROTS and then a 20 year old Luke shortly after that to tell you that 20 years have passed. Plus you had the crawl itself announcing that there is civil unrest during the Empire's reign with the Rebels achieving their first victory and so on.
Therefore the ANH opening crawl works whether it's the first or the fourth film you're watching whereas TFA's crawl was confusing even for those of us who have lived and breathed SW our whole lives.
The ST does indeed feel like an epilogue but I think that *any* ST was always doomed to feel that way due to how George wrapped up ROTJ. No matter what story they told it was always going to be a brand new threat not connected to the conflict of the previous six films or just a rehash of the previous threat. Dark Empire comics, Timothy Zahn novels, the current ST and even George's proposed ST all were destined to feel like afterthoughts no matter what. But since that was a foregone reality I'm still glad that we got what we got.