Because the queueing seemed to work better for me
This is generally not a reason to avoid best practices. As stated by Khaled and other users here, you CANNOT RELY on /sockwrite to immediately write data. You never could. The fact that it worked in 6.35 or prior versions means you were getting lucky, but this is not part of the spec. Implementation details that changed in subsequent versions made your luck disappear.
To answer your initial question: Yes, you need to update your script to work properly. If you follow the SPEC then your script should work for many versions to come-- just like all the other socket scripts that have been working for me for years.
