Read a National Park rating website about how Zion is so crowded (never been) that I'm rethinking including it on this particular roadtrip with young kids?

Organizing a road trip to take the kids to the following national parks: Zion, Yosemite, Sequoia, White Sands, and Carlsbad Caverns. I've never been to any of those national parks before or any others either (only state parks), but I want my kids to get the experience.

I was reading a page that ranks parks based on a few features: scenery, recreation, etc and "crowding" is one of the ranking categories. Unfortunately Zion had the worst score with crowding and as we would only be doing easy hikes (young kids) that would probably be very popular there, would those of you that have been there recently suggest an alternative NP near the ones we're visiting? Or do you think maybe that is no longer very accurate (the website looks like it was written in 2021)? We'll be traveling in late May/early June. Thanks!