In any case I really hope
The totally-not-crazy author might be sane (doubt it) but he’s clearly suffering from post grade school linguistics traumatic stress syndrome (PGSLTSS). Having properly completed the ditransitive construction sell X to Y, he was faced with both the terror of a possibly redundant “to” AND ending a sentence with a preposition (gasp!) because he decided to fill the dative argument of sell with the dislocated argument of connected, leaving the preposition stranded. Fearing retribution from The Nuns (perhaps) he chose to take the conservative route, and delete the last preposition, just in case. No biggie, right? Prepositions don’t really count anyway, hehe.