That link takes me to a signon page, and when I sign on there it seems to be starting an online tax return. (In fact, if I enter the URL provided even after signing on, it takes me back to the signon page again). Note that the return was filed using Turbo Tax Business, Desktop (not online web site).
https://turbotax.intuit.com/tax-tools/efile-status-lookup/
The same thing happens if I just go to /tax-tools/ and then select "After You File" and then check e-file status, so I am guessing that your advice applies only to those who used the online website to do their return.
JRJ
