Actually this sort of research is really cool.
Schools use a similar technology all the time to catch plagarists.
An alert system that can RELIABLY detect lobbyist cut’n’paste legislation might be a super useful tool to have, even if it is less “crap filter” and more “give it a long hard glance”. I wouldn’t mind getting alerts if stuff like this was likely to go through.
Mind you, the workaround for this is for a lobbyist to rewrite their generic copy before handing it in to the teache…legislator.