Hint: Use a descriptive title for your new message If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. In other words, "2009 Genesis" isn't going to indicate to anybody that you need help. However, "Need help with my 2009 Genesis Sedan" will. Be as descriptive as you can. Please use common sense... This message can be closed by clicking the X in the top right corner.
I understand your concern, but you need not have worried. A transmission filter isn't made like an oil filter. The environment and materials are completely different. Also, an engine oil filter is deteriorated by time and acids, neither are an issue for a transmission filter. They are an extremely fine mesh, molded or welded into a composite silicone and metal frame, and made to last a 'lifetime'. All that said, what the heck, you didn't hurt your transmission any by changing the filter.