It is sadly within Northern's franchise agreement to do this as the 06:58 from Barton once again runs through to Cleethorpes.
I do hope that the regular users manage to make alternative arrangements. There are at least a couple from Scunthorpe as I see them on the opposite platform waiting when using the first TPE out of Cleethorpes. The first train from Scunthorpe will be 2 hours later at 08:00 instead of 06:00.
The lack of advance publicity on this specific change is quite a poor show, it has to be said.