Must-Use Plugin File Still Available With a dot at the beginning of a filename (aka supposedly hidden)

[ronalfy]

If you place a dot in front of a must-use plugin file, I believe it shouldn't be included as part of your Must-Use arsenal and the code shouldn't be available as well.

Perhaps I'm doing it the wrong way, but when I place a dot in front of something (e.g., folder, file), I expect that file to no longer be available.

[ronalfy]

Must-Use Showing Dot File Name Available