Biggest missed opportunities in arrow?
I'm currently rewatching the show for the first time since it ended. Watched it religiously since like s2e15, so this has been very nostalgic and it's interesting to see things from a more adult pov. I have a bigger appreciation for thea and roy now and my favorite character is still laurel. She had the best character arc in the show alongside oliver. Her death was a huge mistake but the introduction of black siren retroactively lessened the impact fot me.
Black siren is actually what drove me to make this post, as I firmly believe that the single biggest missed opportunity in all of arrow was not having a black siren flashback episode. Imo part of the charm of having these alternate universe version of characters we deeply know is to actually see where their paths diverted so drastically that they chose the complete opposite path in life. In cases like black siren it's even more important, because in seasons 5 and 6 she often acts so evil that it's fundamental that her chance at redemption doesn't come completely out of the blue and just "because she's still laurel deep down". This was for example done well with slade, as we saw that he had good in him and a sense of comradery before the mirakuru and hate completely drove him insane. Thus, him finding a way back to his original self doesn't feel cheap or out of nowhere even after the atrocities he committed like killing moira and almost getting starling nuked.
What are some other missed opportunities in your opinion? I'd also say that oliver's "resurrection" after the ra's al ghul fight was terribly executed. Specially after the level of wounds he had. Like, rest and herbs can't heal a stabbed chest and a fall from a mountain top in just weeks.