For what it's worth I agree with the Electron dev's decision to close the ticket. They don't seem to have the same use case as you and are under no obligation to support it.

There's also the unstated issue of ongoing support for the feature. If they put in code obfuscation they'll be obligated to make sure that it provides adequate protections to avoid a deluge of "someone hacked my obfuscated code" type tickets. What constitutes "adequate protections" will have to be updated over time as more advanced techniques are discovered for reversing out the code.

Combined with the performance drops that were clearly outlined by the Electron devs it would seem like a code obfuscation feature could be a really big waste of time.

Perhaps try hosting a page with a crack or serial for your product and see if there's significant usage in the first place? My guess is people are more worried about this than it warrants. A user of professional tools opting to edit the source code of a tool every time it updates seems like they might not be a paying customer in the first place.