There is a lot of this happening. It was happening before the changes were announced as larger companies anticipated that this would happen. After the budget was announced, smaller companies have now followed suit.
Some employers however have missed the boat, as their employees have sufficient service to mean that any redundancy wouldn't be effective until the new year.
I work providing information to the public and we're getting a large increase of calls from employers seeking information trying to get round the changes, from seeking information about trying to give less than the legal notice, paying employees on temporary short-time based on their reduced wages and backdating redundancy forms. All of course illegal.