Does this make sense? Macbook damaged by electricity - repair shop says it's the screen?

Back in May my Macbook pro 16" 2019 suddenly stopped working. It wouldn't turn on. Tried everything. Since I was abroad, there was no way to get it fixed or replaced. Friends gave me their Macbook Pro 16" 2017. After a day, the SAME THING happened to this Macbook. It wouldn't turn on. It wasn't the charger. Nothing worked.

Now, this country was dealing with crazy electricity surges. I found out it must have been my electricity outlet at home. I bought a surge protector and moved houses. None of my other electronics ever got fried. I took my original Macbook to a (Apple authorised) repair shop in the Netherlands. Their conclusion: the motherboard and everything is working perfectly fine. They say it's the screen. "You must have dropped it or put it in the wrong bag or something". I'm always super careful with my laptops so I know this isn't the case. Their conclusion makes no sense to me. Especially since the problem occured to two Macbooks in 3 days.

Can an electricity surge damage the screen? Please share your thoughts cause I'm afraid they'll add a new screen when it's maybe not necessary.