Well if you rephrase it for a normal car it doesn't sound so absurd. "If your hood won't latch the car won't let you drive at highway speeds?"

A failed latch on a front compartment can be very dangerous because it catches the wind if it opens suddenly at 60+mph. At best you are blinded, or it gets torn off to go flying into a car behind you.

As such, highway speeds should be restricted if the latch is malfunctioning. The real problem here is that Tesla doesn't like dealers because they want that middleman money for themselves, so you often have to drive quite the distance to get it repaired. If this were a vehicle from any of the other major manufacturers most people are probably only a few miles from their nearest dealer.

Normal cars have two hood latches. Your primary latch (that you open with the hood pull in the car) and a secondary safety latch (when you reach under the hood to open it fully) so this problem is an extremely uncommon problem for a normal car.

But since this is a frunk it gets opened a lot more for storage and users would probably not be very happy about having to deal with the secondary latch on a regular basis. So they have motorized those latches for ease of use, and motorizing them adds a lot more points of failure.

Yes, and for a reasonably good reason.

If the rear trunk lid of a car doesn't latch shut, the wind will blow it back down. It might obscure the view from the rear window but the side mirrors should still allow rear view, so it's not a serious safety hazard. If the hood, or frunk lid, doesn't latch shut, wind might get under it and blow it open, completely obscuring forward vision. This is why, on most cars, the hood is secured with not one but two latches, and the "second" one that can hold it partially closed is just a lever with a big spring that holds a pawl over a pin. Simple doesn't fail.

This worked fine for decades, because the engine compartment has always been a kind of "back stage" area. Less care for how the trunk latch felt and sounded was put into the design because you'd only open it to service the engine. But now electric cars don't have engines there, so that volume of the vehicle gets re-used as a cargo compartment, and thus requires a latching system that the chai latte-est pair of yoga pants is willing to operate. So it has to be motorized with a motorized latch. And because adding that much electrical shit to the system means chance of failure skyrockets, you also need an interlock that can stop the car from driving with the hood unlatched so it doesn't blow open on the highway.

Being made by Tesla also means the chance of failure skyrockets again.

Reading isn't hard... If the front truck isn't properly latched the vehicle's speed is limited to 15 mph. Technically you can drive it to the service center.