So without getting the "feel" part, Ella wouldn't know how to use those anyway. Either that or, simply, their shapeshifting isn't exactly the same. Kinda like Alexis ability to created spikes (if I'm not mistaken that's her power ?
DrakoGhoul ? That's her right ? And Clark's something else ? Gods my memory is shit
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) and Deryl creates pretty much whatever he wants. If you look at the way they use it, both seem to have "creation type powers" but they are quite different. So while yes, Ella's and the MC's are very similar, nothing says they are exactly the same.
Otherwise that would mean there'd be only so many powers possible, so out of the hundreds of Superhumans that are supposedly around, most would have the same powers.