Offizieller Kommentar
No, updating to 10.14 would not fix the problem and we are currently advising users against upgrading at this time.
As for the touchbar issue, I looked at the internal ticket (this isn't a ticket, it's a forum post), and the last status I have is that they were working on a solution. I've asked for a follow-up but don't have any other details at this time.