For those that see halting illegal border crossings as a positive (which are likely a minority on HN but HN is not representative of the nation), this change hampers the ability to enforce the law.

Even for those that do think halting border crossings is bad, the consequences of making ICE change to a different IT solution is likely that ICE's bureaucracy is hampered and people detained at the border take longer to process and thus result in more hardship.