web page plays several videos at the same time

This tutorial page plays videos in a media carousel. https://www.spaceengineersgame.com/how-to-play/

When I play one video, and then click another and play that as well, and so on, they all play at the same time. The tutorials start with 7 secs of silence, so I started clicking around, thinking they had no audio, and then several started talking at the same time! :-P

Of course I can "panically" browse back through the carousel and stop each of them again. ;-) But it's a weird use case to even allow to play several videos/audios simultaneously. It makes sense for one video to keep playing in the background while the user browses through the rest of the carousel. But when I click Play on another video, I expect the previous one to pause.

The same thing could happen on the Media page as well. (Only there, the first video played audio right away, so I didn't wander off and click Play on the next one prematurely...)

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The web page is pretty well done, by the way. Just one nitpicky comment about visuals: In the Game Guide, I can't tell in which category (tab) I am, for example:

1. Click "Experienced Players", now the "Experienced Players" tab is highlighted, good; 2. click one of the sublinks like Virtual Scripting Tool (https://www.spaceengineersgame.com/virtual-scripting-tool/); now, no tab is highlighted.

Or 1. click the "New Players" tab, the tab is highlighted; and then 2. click "How to play", now, no tab is highlighted.

That's obviously not preventing anyone from using the page. But why have such highly visible tabs for guidance/structure and then not use them in 90% of the cases?