I would like to thank you for your feedback and feature requests!
We're currently validating the idea of providing official SP2016 Web Parts for the AJAX components in R3 2016 (due in mid-Sept).
I am familiar of this workaround, but since we currently do not support SP2016 officially, we cannot support it until our official release of the SP2016 Web Parts in Sept, 2016.
My suggestion is to test this approach and if it works without problems to use it until the official R3 release.
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