I would normally agree with removing jargon, but again I don't think that they are the same thing, so to call them the same thing is a bad idea. The difference is in the funding. A player funds an invoke. The GM funds a compel.
Additionally the GM (and to a lesser extent the table) decides whether a compel is appropriate and may refuse to compel or even alter the compel to something entirely different (as long as it's appropriate to the aspect/situation).
None of these things are true of invokes.