When 99% of people use a word one way but you use it differently, odds are you may be wrong.

Not to be negative... but no.

I’ve never in my life seen or eaten a cheesecake as you are describing it.  I just scrolled through a few pages of google image results for cheesecake and 2 out of 200 appeared to be missing a crust.  What you’re describing is cheesecake filling.

I love it when people jump into threads here to declare that the definition everyone else is using for a culinary term is wrong and only their own idiosyncratic definition is actually correct.