Personally I have only worked on server-side mods and I have little experience in mission scripting. I think the changes ED have introduced can be very interesting for server-side mods, intended for more advanced users. However, now knowing that missions also leverage dostring_in and have now been blocked, I do agree with @cfrag's point that soon someone will just make a post somewhere saying to simply copy these lines in autoexec.cfg and enable absolutely everything. I think the idea behind the change is good and needed but the approach may require some tuning.