Bumbleby and its buildup is far more flawed in Fixing RWBY than it is in canon
Right off the bat Volume 1 puts them and the entire rest of team RWBY on much rockier footing than canon for the sake of "realism" or whatever
Yang takes over Sun's role in V1, which while more fuel for the bees than in canon, is a contributing factor to Sun being almost a waste of space in FRWBY due to having almost all his contributions to the story written out
Burning the Candle and the dance is mostly unchanged in V2
In Volume 3 Yang phrases her reasoning for attacking Mercury slightly differently than in canon, which makes the connections with Adam stronger than in canon to Blake causing her to stop trusting her. When the Fall of Beacon starts, with absolutely zero reasoning explained to the audience, Blake calls Yang apologizing saying she should have trusted her more. I have no idea what caused this change in her mind
In Volume 4 Blake almost never mentions the people she ran away from due to speedrunning her entire canon Menagerie plotline
In Volume 5 Blake doesn't mention Yang until right before she's preparing to get on the ship for Haven due to focusing on an original plotline of interrogating the White Fang that attacked her family home at the end of FRWBYV4. On top of this Kali is the one who puts her self-loathing issues to bed, which takes away from another Sun contribution. And on top of THAT Ilia never confesses her feelings to Blake at any point which is a mirror to Yang mourning Blake running away from her and wanting her to be there in canon
In Volume 6 all of team RWBY is on worse terms than ever for the sake of "realism" due to being separated for over a year. Blake talks to Cardin of all people for relationship advice and he explains to her that she's being overprotective of Yang instead of Blake learning this naturally from Yang at Brunswick. Cardin. Not Velvet who FRWBY wrote to have a bigger friendship with Blake in the Beacon era. Fucking Cardin played a role in the bees happening
Volume 7 proceeds to actually make the Bees rushed from an audience perspective because their growing feelings for each other is even more blatant than in canon, leading to them confessing their feelings and kissing near the end of the volume. The thing that prompted this? Being barred from entering a racist dance club that doesn't allow faunus inside
And that's without even mentioning Adam who Celtic clearly had no idea what he was doing with despite having the benefit of hindsight on his side. Like it or not, Adam's toxic ex-boyfriend traits are one of many things he has to act as a mirror to Yang and develop the bees. In FRWBY he starts in Volume 3 mostly unchanged from canon but with more people getting disfigured by him
Volumes 4, 5, and 6 proceed to almost eliminate all his toxic ex traits in favor of focusing much more heavily on him being an extremist revolutionary and being a mentally unwell man. Volume 6 has him outright hallucinating at multiple points to make up some sort of parallel with Yang's PTSD which is much stronger and more crippling to her than in canon. But wait shit fuck Celtic is going for the bees now in Volume 7 and now that Adam's dead he has to have Blake tell the rest of RWY and the audience that yes indeed she and Adam were exes to try and fix the Yang parallels
And on top of THAT, Blake and Yang aren't the ones who get the kill on Adam. Ruby gets it. His last words were "Fuck You Schnee," to Weiss. No catharsis for Blake who gets Gambol sliced in half by him during the final battle and was haunting her throughout the entire story. No catharsis for Yang who he literally crippled and gave debilitating PTSD AND destroyed her prosthetic during their final battle. No, he gave the kill to the person with the absolute least personal connection out of the entire team