I think we should listen to everyone, but is it not the same around every budget? For the last week we've had all sides telling Reeves that she needs to increase taxes more than she's planned for x cause, or not increase them as it affects x cause.
Now we'll get a few weeks of people telling us it's not enough/too much.
If there are changes that add costs to employers, then any employers' union is going to be saying it's too much. If the NFU weren't complaining that would be more surprising - it's their job to advocate for their members.
As with anything, the proof of the pudding is in the eating, and I guess we'll see what happens. Employers can say they won't take people on, or won't be able to increase wages, but if they need staff, then those decisions won't be as straightforward as many are suggesting.