While The Big Bang Theory’s upcoming spinoff does need to fix a major ending mistake from the original show, this will be surprisingly easy for the series. The Big Bang Theory’s finale wasn’t a disaster like How I Met Your Mother’s infamous ending, but the popular hang-out show’s ending wasn’t a home run either. Unlike Young Sheldon’s finale, which set up its spinoff perfectly, The Big Bang Theory’s ending featured numerous unexpected twists that weren’t entirely appreciated. Penny’s last-second pregnancy was an unwelcome surprise for Vulture’s Kathryn VanArendonk, who noted the character’s previously established disinterest in having children.

https://screenrant.com/big-bang-theory-stuart-spinoff-raj-relationship-fate-fix-op-ed/