I take it that we do not agree, but I’ll just state my opinion that it is very irresponsible for you to post an update that completely breaks my site. I use automatic plugin updating software across 100 web sites that I maintain and to have a plugin author dismiss this problem as my problem is not the norm.
Should my client update their PHP version? Probably. I’ll suggest it of course.
Should a single plugin update on any of my sites cause that site to silently stop working without any notice at all until someone happens to notice? Definitely not.
Now that you know about this, the responsible thing would be to post a .0.1 version that contains a workaround and allows my out of date PHP version site to continue working. I mean you could put up an uncloseable notice in my dashboard on every page asking me to fix this and telling me how much danger I’m in, but just letting me fail….