Hide hosts in maintenance for a Triggers query when counting by Problems

[AndyFug]

When using a 'Triggers' query type where I use the count by 'Problems' option, I would like to be able to exclude hosts that are in maintenance. Currently there does not appear to be an option to do this:

Contrary to the above, in a 'Problems' query type, the option to show/hide hosts in maintenance is working as I'd expect:

This appears to have been a feature in the past, but I'm guessing the integration has been significantly re-written since 2017 and has lost the feature.

Describe alternatives you've considered
I cannot think of how else to acheive this. If there is another way, please let me know.