It is not. The authors were working on Slay The Princess, that's why the progress on this game has slow down (and next chapter will be massive). Now that STP and the pristine cut are out, I think this game will be the main focus again ! ( ^-^)
Status update was on the discord, there was little word because the ep5 script is just that massive (250k word, larger than StP) & they felt odd just saying "more writing completed". Now that script is ready they'll update on ep5 status more frequently. Wasn't abandoned, they made StP to be able to fund the studio while completing this huge game.