I agree with everything you said. Perhaps you have a case of mid-winter blues.
Keep your vision for Sigil and make those changes which are truly bugs or fit into your vision. Answer the "Pink Screen" with a recommendation for a CSS entry.
I do have one change request to go along with this.
Take a page from Calibre and insert a "Donate to Sigil" selection. I for one am agreeable to donating especially when a new version is delivered.
Remember what we were told in the Army:
"Cheer up! Things could get worse.
So we cheered up and, sure enough, things got worse."
Keep the faith, baby.