The problem is removing any physical barrier between you and the cutter block and push sticks don't get over this, push blocks do!!!
The rebating on the surface planer is a red herring, it has shaw guards over the cutter block (a physical barrier) also planner produced since 1995 are designed so you can't rebate on them and under the ACOP's if you had an accident in a commercial workshop rebating on a planer you would be liable for prosecution if you have access to either a router table or spindle moulder, this has been the case since 1998.
Some people clearly need to keep up!
I would also advice not having trailing leads or trip hazards around the machines, I am sure Jacob lot his in place as a talking point
Push blocks are safer than push sticks on the planer offering much better control and grip over the timber and they act as a physical barrier if the worst were to happen.
I don't condone the removal of guards but you can use plush blocks and bridge guards. This is how the Americans do it, these boomerang guards are also not approved in the UK.
https://www.youtube.com/watch?v=1uqFGp7V55Q
Cheers Peter