If you look at the Revisiting the Roots page, you'll notice that the trope is framed as a good thing: a return to form for a franchise that has gone through a Dork Age, a TV show (be it animated or live action) that has gone through Seasonal Rot reminding us how good it was in the beginning, a character that suffered Character Derailment showing us how good it once was.
...Revisiting the Roots is not always a good thing.
It's a work that Grew the Beard, and the Revisiting reminds us of how awful it was once it started. It's an Erin Winters whose Revisiting reminds us how flat the character was in the beginning. It's a From Sugar to Cyanide work whose Revisiting reminds us how much the show Tasted Like Diabetes (or how Dude, Not Funny it was) in the beginning.
Either way, this trope is when Revisiting the Roots falls flat on its face because said Roots are an embarassing Old Shame.
- The Neo-Saban era of Power Rangers (Samurai, Megaforce, Dino Charge and Ninja Steel) was very much this trope, bringing back aspects of Mighty Morphin (the flat characterization, the Merchandise-Driven nature of the show, the Filler, the lack of compelling drama) that the franchise had since grew out of.
- Happens every time the Sonic the Hedgehog franchise tries to Revisite its Roots, since back in the Genesis days Sonic was a flat Mascot with Attitude, Eggman/Robotnik was a Bowser-ish Generic Doomsday Villain, and there wasn't much in terms of plot. Sonic Mania subverts this by bringing back long-missed gameplay mechanics (namely pinball physics and multiple playable characters) and a Lighter and Softer mood that actually works.
- The 2014 Godzilla (and, to a lesser extent, Shin Godzilla) are poorly received because the Darker and Edgier tone, the focus on humans, and the Anvilicious Aesops are all things the Godzilla franchise has, for the most part, abandoned, and is much better off for it. Notably, Godzilla: King of the Monsters was much better received because it restored the Narm Charm and "badass Godzilla fight evil Kaiju" premise that everyone wants.
- Teen Titans Go! went back to the Silver Age roots of the Teen Titans...even though both the comic and the team only took off once Marv Wolfman and George Perez removed much of the camp and made the Titans a more respectable and dignified team.
- The DC Extended Universe versions of Batman and Superman go back their Golden Age depictions as murderous Designated Heroes, which is something VERY far off on how the characters are defined for most people.
- The Xorn debacle happened because Grant Morrison turned Magneto back into the Doctor Doom-ish Evil Overlord he was during the original Stan Lee-Jack Kirby run, ignoring how Chris Claremont developed Magneto into a Well-Intentioned Extremist Holocaust survivor.
- The even more fetid take on Magneto seen in the Ultimate Universe also partially qualifies.
- Done more literally than other examples is Supreme, where the flat Designated Hero Rob Liefeld Supreme gets brought back in-story and proceed to eliminate everything from the much more beloved Alan Moore run and leaves the Alan Moore Supreme a shell of his former self.
- One of the reasons the Twelfth Doctor is a Base Breaker is because he brings back the rather annoying Grumpy Old Man characterization of the First, Second and Third Doctors, that the show as a whole worked hard to avoid since the Fourth Doctor (which is why the Fourth Doctor's era was a Gateway Series for the show as a whole for many non-British fans).
- Mega Man 9 and to a greater extent Mega Man 10 are seen as this, due to removing several gameplay mechanics from later games. On the other hand, 9 was seen as progressive (though the previous Inti Creates games introduced female standard bosses before the more famous one), while 10 has some possible links to the X series, so it's not all bad.
- Whereas Rise of the Teenage Mutant Ninja Turtles doesn't normally fit, it did see the return of the idea that Splinter was a far less-than-ideal father, like in the original comics, one of the most controversial choices in the series.