Well if he was not away and you asked for support and did not get any reply then it is a different story but from your first post this can’t not be concluded since never was mentioned.
I agree not to call out any names or items. I believe in communication and what ever the problem is if both sides just communicate in a decent way and remove unnecessary insults ( even frustrated ) everything can be solved.
I do not agree for hiding the product only to display message more appropriate since maybe someone wants to purchase and is ready to wait for the support until the author is returned. Since as I recall if the support is expired and item has a bug author must respond to that and fix it. To me this charging of support is stupid and useless.