??? The equipment boosts do show up. If you pause the game when you are at bat, and you go into your player card, you will see a bunch of "+" numbers above your attributes. Those "+" numbers are actually your equipment bonuses.
The equipment bonuses do not show up on your OVR or as part of your statistics. They don't show up when looking at your archetype. The only place I've found that they show up is in the in-game pause menu. But they are there and do impact your performance.
Hope that helps.
They show up in the player card, but aren't actually there in RTTS. The best way to see this is to swing and miss and you'll see your CON, POW, VIS stats, and they will be without the equipment boost. I had the boost work randomly one game and the PCI was much larger (as it should be with the equipment boost) and then the next game back to without it and much smaller.