Does the Workflow engine use EXISTENCECHECK methods directly?

Hi all,
I'm curious about the use of existencecheck. It's a method in all Business Objects, which I have no problem with and fully understand.
What made me curious is that OO Classes used in WF still include an EXISTENCECHECK method. Theoretically it's not necessary, because the constructor does pretty much the same thing.
Workflows work fine if I make them private, which makes me wonder if it's a case of "because we've always done it that way".
So, is this still around because some obscure internal routines call it occasionally? Obviously I cannot conclusively test this, and on the other hand if it is used then shouldn't it be part of IF_WORKFLOW?
Any input appreciated.
Cheers,
Mike

Closed due to lack of interest...

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