Can't have it both ways
So is it surprising to want employee rights if you're going to be taxed as an employee. Clearly not.
Personally, I'd like the freedom to organise the sick/holiday/pension/other entitlements myself simply because it's not practical to become engaged on any short term contract and receive those benefits, particularly where rates are unsustainably low such as in the NHS. My concern is that a bad idea (IR35) will be extended to save face at ministerial level rather than admit it was poorly conceived; however, testing something out and discontinuing it when it's found lacking is just good practice (sort of!). Roll it back.