It's a question of how one characterizes causality. Science deals with the mechanistic causality of physical and chemical interactions
only--what Aristotle, 2500 years ago, identified as "efficient" causality, one of four kinds of cause required for any phenomenon. If that's all you think there is to it then yes, theistic evolution collapses into deism. If, on the other hand, you take the position that efficient causality alone is not sufficient, then nothing is swept under the table. The other big issue with creationists is the randomizing element in evolutionary process. Here is a quote from St. Thomas to the point:
"Divine providence imposes necessity upon some things; not upon all, as some formerly believed. For to providence it belongs to order things towards an end. Now after the divine goodness, which is an extrinsic end to all things, the principal good in things themselves is the perfection of the universe; which would not be, were not all grades of being found in things. Whence it pertains to divine providence to produce every grade of being. And thus it has prepared for some things necessary causes, so that they happen of necessity; for others contingent causes, that they may happen by contingency, according to the nature of their proximate causes."
--St. Thomas Aquinas, Summa Theologiae
Nothing happens in the universe without the continuous sustenance of Divine Providence, but you can't prove its presence with science.