Something you can just look at being used in the real world can’t be propaganda. I know people who have been driving BEVs for over a decade and while they’d be the first to tell you there are real problems (e.g. long road trips) but it’s a commodity technology they’ve been using, so clearly it works for many people. Since people have been using them all over the world at scale, you can get reliable data on how it’s working for any particular question.

Contrast that with hydrogen, which is only barely out of prototype stage with extremely limited availability. The Toyota Mirai is the most successful with around 21k units sold total since 2014 - 3 full orders of magnitude lower than Toyota’s annual sales count, or the total BEV sales.

Now, it’s possible that things will pick up if there are some big improvements in cost and availability but that’s a huge if since it requires major advances in multiple areas just to become competitive with BEVs: it’s not just price but especially fueling - batteries are slower to charge but electricity is available almost everywhere so your plan B is a lot better than needing a tow if anything goes wrong with the one station you were planning to refuel at in the few regions which have any stations at all. Again, that’s not intractable but it’s a much harder chicken-and-egg problem, especially as long as it relies on customers choosing to lock in higher costs and significant restrictions. Environmentalists care about the result, not the technology, so they’re just going to buy an BEV if they aren’t riding an e-bike.