I expect the responsible person listed for some specific application to react to an email about it to fix it, and not send me police. Why would I want to jump through hoops for doing them a favour?
Same applies also if there’s no easy way to send a mail to someone responsible.
I did a bunch of vacuum adapters last year and ended up just going for some stiff TPU. Solves the cracking at layer lines issue and compensates for unevenness of the vacuum.