Now that they no longer have exclusivity and appeal because they were locked behind temporary battle passes what is the point?
Most of the shop skins are BETTER than the mythic. Why would I wear Mythic Kiri or Reaper when their shop skins are 100% better?
They no longer even have valuable customization with every new mythic evolutions of the base mythic instead of genuine customizable differences
Quality, customization, special effects, and rarity (each hero gets only one… for now) should be the point of them, but it’s pretty hit or miss. Orisa’s, for instance…
they tend to be more detailed and more work goes into them. they cant promise you will always like them better than cheaper skins, its a matter of opinion.
Should be obvious tbh
To convince you to open your purse.
They were never meant to be just “temporary”.
Their point is to have special effects, customisation and much higher price.
Mythics are cheaper than Legendaries and I’d argue the new shop skins are more detailed. They only lack special FX
BP is 10 bucks how are they are higher price?
The honest answer is $$$.
Bad examples
Excuse me? Lobster Orisa is my favorite skin! 
this mindset never fails to baffle me. I’ve never once used a skin because I thought it was “more exclusive”. Most skins aren’t even “exclusive” except Noire Widow + BlizzCon + the 300 dollar Dva one. Do you just use default on the other heroes, or meticulously curate a list of the the least used Battlepass skins?
Why would I wear Mythic Kiri or Reaper when their shop skins are 100% better?
If you like it more and it’s 10 dollars+grind instead of 20? (also what Reaper skin is better than Anubis? Nebula, Lu Bu and Cursed Captain are good but better? no)
I personally like Plague Doctor the most, but I digress.
I think your perspective was right, but you need to update it to reflect the new reality of the mythic shop. I think Reaper’s mythic is representative of what we’ll see moving forward quality-wise, which is a high level of quality.
They are the next level beyond legendary. Seems pretty obvious to me.
And the Phantom Menace is my favorite Star Wars movie. 
Ayo, based as hell! Meesa loves the Phantoms Menace!
Because they look cool and make battle passes more worth to buy? Think about it, to get a mythic skin without the battle pass it would cost roughly 80 dollars. This encourages people to buy the battle pass and play the game more.
money to line the pockets of Activision Blizzard investors
The same reason you get any other skin. Because you like it, and you can get it.
Except they are closer to accidents because it’s “oh, I can do the BP and get one of these? Cool™ I guess.”
Wearing a cosmetic because you like it and not because it gives you prestige? The hell? Why would I wear something I like when I could just wear something to show off?