Hollyoaks fans fuming as controversial story is confirmed: What is the point?

Hollyoaks fans fuming as controversial story is confirmed: What is the point?
Sienna recently discovered she had an uncle, Jeremy, who is the twin brother of her late father Patrick.
Jeremy, played by the same actor who portrayed Patrick, is also a villainous character like his twin.
Despite initial reservations, Sienna has developed a bond with Jeremy over time.
Next week, a huge twist will be revealed - Martha will tell Sienna that Jeremy is actually her biological father, not Patrick.
This is being viewed negatively by many longtime Hollyoaks fans, as Patrick's relationship and influence on Sienna was pivotal in shaping her character development.
Fans feel this retcon risks negating the stellar work done in making Sienna a more well-rounded, less scheming character, now that her father is revealed to be another villain.
There are also concerns about timeline inconsistencies and how this twist will "mess around" the Blake family history too much.
Some fans state they could potentially understand the twist if Jeremy was a good person, unlike the villainous twin he is presented as, which makes the reasoning behind this storyline unclear.