The problem is the filing method, which is not at all less difficult work, it is the opposite:
Losening the green solenoid with the wires attached is not what was intented the way those Pentax bodies are built.
The K-S2 (and K-70 with the same body!) are small bodies, so everything is even more tight.
The wires are and have to be thin!
If the wires are unsoldered properly, nothing gets damaged. The pins of the solenoid just hold those wires, nothing else.
But trying to get the solenoid out with wires attached bends them and one has to fiddle around to get it lose
for access to the plunger. Then it has to be placed back on the mechanism and rod which is far more difficult with wires attached.
So just for sake of saving a bit cost by not granting the K-S2 (or K-70 or all those other Pentax bodies) the proper part (white Japan solenoid)
one risks further damage.
One makes all this effort for printing out the photos for the screws, disassembly and then saves costs at the very worst place?
It is o.k. for those who do it but they should not encourage others or just defend their method in public.
There are those who do it because they repair cameras with this method.
So of course they must defend it.
Many official workshops repair it like this because it is cheap. Just work involved.
At least some do it a bit more clever such as an official workshop did.
But the solenoid failed again shortly after the official warranty was over and done with.