The missing link: https://publications.parliament.uk/pa/cm201719/cmselect/cmworpen/352/352.pdf
The draft bill starts at page 28. On the whole it doesn't look good, in particular: In this Act an individual is “an independent contractor” if he is neither an employee nor worker.
We need a clear right to be in business on one's own account enshrined in law and with a better definition than "falling between the cracks".
The problems start at the beginning in 1(3): a tribunal or court may have regard to the following factors, for example: Surely it makes sense to either enumerate principles from which the tribunal or court can decide on factors and give examples or to enumerate the factors outright. This is neither.