Pact of Tome grants other classes cantrips as warlock cantrips using warlock spellcasting ability?

@AntiSocial_PhilRuling Needed. Pact of Tome grants other classes cantrips as warlock cantrips using warlock spellcasting ability? The intent of Pact of the Tome is that the chosen cantrips become warlock spells with Cha. as the spellcasting ability.

— Jeremy Crawford (@JeremyECrawford) January 21, 2015