I agree with you.
Also, have you noticed that the size of the jpg file and tiff are almost the same? Each image saved from the printer have artifacts from the compression jpg. Try to scan a photo with strong contrasts. If you look at the photo at 200% zoom you will see many jpg artifacts. This seems unacceptable if I choose tiff.
Using WIA driver the output have jpg artefacts, using TWAIN driver the output have good quality but some software consider TWAIN obsolete and do not support it. Please, improve the scan quality with the WIA driver.
I'm not able to scan to gmail. Is there a way to do it? Is the e-mail server of the WorkCentre 6027 compatible with SSL or TLS?