Have there been statements of Denise Crosby made some time after she had left the series and admitting that maybe she had made a mistake in leaving TNG? Especially in the radical way with her character dying?
I don't think that leaving Trek gave her career such a big boost after all and the fact that she returned three times (twice as Tasha and then one time as Sela) shows that she doesn't seem to have any real hard feelings for the series.