IMO they're falling down on the job... The tray has been around for about a year. No excuse for not at least putting disclaimers out there.
Was this issue not addressed with the bottle relocation bracket that we have been producing the kit with? We have no record of any customer complaints from this kit regarding the vacuum line and we have installed them successfully in our own shop without issue. All critiques are welcome, but we have to hear them in order to make our products better.