Not forgotten. That was just how they were installed and with the butyl there was never any reports of leaks and they wanted to be able to get to things if they needed changed.
However, perception is what it is, so a decision was made to go ahead and seal them as an extra line of defense and FURTHER insure they never need to get to them.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).