Why Galio's Update is not a success
Please note: These are just my personal opinions and expressions.
Galio's update did a lot to the champion, both to his kit and to his character. I'd say the kit changes were for the most part a success, they kept the all in on ult in his kit, even if changing how to get there. They even kept his aoe taunt! The kit changes were needed for sure, as Galio himself was stuck with this odd mix of abilities (long range poke, all in ult, incredibly awesome healing and counter to damage over time abilities).
But his change of character is a failure. Perhaps it makes sense in how they made the new lore, but I cannot accept this is the character named Galio. Rioters have been repeating this idea that his prior state did not have a personality, but that idea is a rejection of the truth. Many have described their thoughts on Galio's personality, but what I take away from all this is that Riot didn't like the old Galio or understand his playerbase.
A lot of players don't care or even like the flashy playstyles and personalities. Galio's old character was an understated sentinel, he didn't need to speak much and had an internal strife that resonated well with this small group of players that felt like they shared that powerful silent angst. And now we have a loud giant with the same name, joyful yet in strife. And sure, seeing more emotions come out of this guy will make more people play him, but that wasn't what many of Galio's original playerbase wanted or even enjoyed. They liked Galio for being understated, which is something the new guy doesn't have.
You can read this and recommend other characters that fall into this trope like Maokai or the new Warwick but that doesn't fix the feeling of loss that many OG players feel when a rework happens. It happens with every rework, but the reality is that it is worse when Riot ignores the portions of the community that care about the changes, rather than the people hyping up for the new thing.
Thank you for reading.