POGS in regard to the Jenney Formby proposals on candidates for MPs having to have a minimum time of employment outside of politics and parliamentary system, then as stated the plan is in its early consultation stage within the broader Labour movement in the country. In that, and again as already stated, there will be many situations to foresee and objectively dealt with, and therfore It may be quite a number of months before any outline policy is ready to brought forward to be debated by the Labour Party conference.
For what it is worth, my opinion is that the Formby proposal is basically sound and the outline should be adopted for "firming up" into Labour party policy.
In regard to the be the behaviour of MPs in the House of Commons, then I cannot see where the performance of Jeremy Corbyn (good or bad) or any other MP who stands up to speak comes into the matter. They are are all supposedly mature adults in that chamber and therefore should act in accordance with the privilege of office that the electorate has granted them.
In the above, they should be prepared to listen quietly, and with respect, to what any other person in that chamber has to say. However, what the electorate and the World constantly witnesses is those in attendance turning Britain's highest legislation making authority into a close resemblance of a local Rugby Club Bar on a Saturday night in the 1970s
I believe that the whole parliamentary system along with the building that system it is carried out in requires consigning to the British history books and a new parliamentary system be brought into being from the ground up.
In that, much can be learned by looking to modern Parliaments overseas where members of those parliaments sit in a semi-circle around the executive at workstation type desks. From there the MPs can access relevant documents and information at any time, cast their vote at the end of any debate, all from the built-in computers at those workstations. They can also electronically inform the Speaker if they wish to address the house.
Bexit has demonstrated that our parliament and its system is totally unfit for purpose, and has grossly let the British electorate down while in the largest crisis Britain has faced in over seventy years.