haha, man
Are you guys serious? Have you been keeping up with the Punisher at all? There's no way to write him now other than as an absurdist black comedy, which is exactly what this is. You want well-written Punisher stories, go to the MAX imprint.
616 Castle has been a mess for years. He's unsustainable as a consistently-written character. For better or worse, DC and Marvel operate differently - DC can "reset" their characters every so often, while Marvel tries to keep the momentum behind most the ones they have. In the case of a character like the Punisher, that means they're eventually going to crash and burn. Spoilers: Frank Castle has been burning for a while now, and the best you could hope for is someone putting him out of his misery. Until then, enjoy the warmth of the fire and the smell of the cooking flesh.
Franken-Castle, seriously. It's no different from characters like the X-Babies or those recent bite-sized DC characters - a clear joke. But the jokes in Punisher comics tend to have considerably different punchlines.