The problems with that comparison are both the limited sample size and the fact that those decks are a mix of current-or-recent-use and old-stock decks. At one time, as recently as about a decade ago, it was exceptionally common to see borderless designs, usually Bee Diamond Backs or similar variants. Gaming houses got wise to how the borderless decks are used by advantage players and cheats on the inside. I'm sure some houses out there still use them, but the majority do not.
Paper decks are largely used and blackjack and other similar games where the player plays against the house, usually dealt from a multi-deck shoe or an auto-shuffler which shuffles as you go, and generally doesn't even handle the cards. Such devices can be rigged by insiders for things like second deals and the dealers themselves can perform culls from the muck, card swaps, etc. if they possess just the right sleight of hand skills. Borderless decks make such moves more difficult to spot, so casinos switched to bordered.
Plastic decks are even more likely to be bordered, as they are used in games like poker, where the player actually does handle the cards. You never know when the next guy at the table will be a serious mechanic. Worse, combine that with a crooked dealer, and the house can be in serious trouble.
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