I've played SCL. It is an "ok" game. Voice acting isn't great, bugs everywhere, we were promised 5e ruleset which was not delivered AT ALL, DM tools are a joke, etc.. I would give the game 3/10. I requested a refund as well but because I spent 4 hours trying to make the game work (crashes) and trying out the DM tools / online only to realize how bad the game is and how much it's not what was promised I was refused by STEAM. I'll be trying again over the phone and any other means possible and if those don't work I'll be going through my bank ASAP. I bought the deluxe edition of this game. Total regret.
When you purchase a game, or other piece of art, and find yourself disappointed in the quality, you do not deserve a refund. That is part of the risk of purchase, and to badger a company for a refund is poor form (customer service people hate you).
If you purchase a movie (DVD, Blu-Ray, streaming, or at the theater) and decide it was a crappy movie, is the retailer going to give you a refund? No. Nor should they.
If you purchase a novel, read it part way, and decide it's terrible, will the bookstore give you a refund? Nope.
Likewise when you purchase a computer game, and decide it's lousy, do you deserve a refund? No.
Now if the game claims it works on your device, but it doesn't, that's refund-worthy. Or if they game truly is broken, incomplete, or not-as-advertised, those are refund worthy situations. But SCL is not broken, incomplete, or not-as-advertised. A bunch of folks are unhappy with the quality of the game and it's adventure creation tools, but that's not the same thing.
It sucks to drop $40-60 on a new game only to find it's crap-ware. But such is life. This probably wasn't the first disappointing game you've purchased, and it certainly won't be the last.