In most web video players (e.g., youtube, kaltura), when used on a Windows touchscreen monitor, you can tap in the area of the video to play/pause the video. It plays/pauses the video just fine when you click with a regular mouse attached to the same computer. StoryMaps seems to not be interpreting the tap on a touchscreen as expected.
Our current use cases include StoryMaps with students using touchscreen laptops and on touchscreen monitors for interactive museum exhibits. The students can use their laptop's trackpad as a workaround, however, for the museum exhibits an external mouse is not an option.
(This came up as we hoping to use click-to-play in the StoryMap video player as a workaround related to wanting to use Microsoft Edge's whitelist for autoplaying videos with sound, Auto-play of video with sound but no user controls.)