Regular Expressions for Conditionals logic

Right now I can use conditionals to change the state of one field based on the value in another field, but what if I want to base that logic on a range of values? Unless I'm missing something, the current conditionals logic is extremely limited when it comes to evaluating anything except single, explicitly defined values.

For example: I want to show a Message element when someone selects a value in a Time element that falls into a particular time range (let's say 5:00 PM to 11:59 PM). To do that, I'd have to list every possible value that I want to target in the Time element through the UI which would output the following YAML source code:

message_hours_of_operation:
    '#type': message
    '#states':
      visible:
        - ':input[name="desired_time"]':
            value: '5:01 PM'
        - or
        - ':input[name="desired_time"]':
            value: '5:02 PM'
        - or
        - ':input[name="desired_time"]':
            value: '5:03 PM'
        - or
        - ':input[name="desired_time"]':
            value: '5:04 PM'
        - or
        - ':input[name="desired_time"]':
            value: '5:05 PM'

... and on it goes bloating the YAML source code.

I know we're just evaluating text strings here so adding something like "between" as a conditional operator isn't going to make sense. BUT I'd love to see regex matches for conditional logic just like Webform's validation currently uses. That way If i wanted to target 5:00 PM to 11:59 PM, I could use a regular expression like this:
^[5-9]{1}:\d\d [P][M]|^[1]{1}[0-1]{1}:\d\d [P][M]

What do you think?