@Riot Your logic for swiftness boots is good but......

As long as rylias is so powerful and so easy to apply, boots of swiftness are going to be necessary.

For the same reason that you guys are struggling with champions with slows in their kits (because boots of swiftness being so popular, at least according to your podcast), players can't buy anything but boots of swiftness or risk being kited by rylias users indefinitely. Tenacity doesn't matter when a 40% slow is getting constantly reapplied in any form, be it single target, aoe, or dot.