Why the heck would you assume that you'd always jump with the Blood Lance? It's there for the drain physical and for Equip Spear usage. It's not wedded to the Jump ability, and acts as the most powerful draining weapon in the game (whereas Blood Sword and Bloody Strings both get outdated). 16 WP is still "better than anything storebought period", and only a single point below the Dragon Whisker which has no other perk. Okay, so it pales in comparison to the original Javelin 2 for damage, but that was just a silly uberweapon. If it's still competitive with Slasher for Jump damage with all these perks, I can't see how the option of smacking someone to heal yourself up is not a valuable option when you need to take it. Making it Jump-best damage AND spear physical-best damage AND have draining sounds ridiculous to me, and adding even 1 more WP would pretty much accomplish this. I mean, yes, sure, there's an argument to make it completely undisputably the best spear (as opposed to just "probably"), but the idea here is to both add more character and not make them just Big Shiny Numbers.
The point was to make these two items better but still comparable to other rare aftergame equips. The Golden Esch just being that much better than the other shields was silly to me. I really didn't see it as wedded to Abandon either. It could go up to 40 just to match FF6's Paladin Shield stats for thematic reasons if you're that concerned about its power (and if it wasn't obvious, the elemental properties are a direct correlation of it). Hell, I'd rather take the Venetian Plate and remove its elemental properties and give IT the 50/50 evasion stats if you absolutely want something that can synergize with Abandon for 100% evasion.
Rubber Costume (Snow Muffler) having Start: Wall again makes sense if you're drawing from the previous FF background. It doesn't accomplish much, no, but it's amusing to have it on something. Didn't go with Protect because it both actually fits less and is already used on other stuff. I kinda toyed around the idea of making it Always: Wall with no HP/MP bonus but... probably too abusive. Rubber Costume is also just not winning any points in the regard of "this is what people remember about FFT", to me; heck, Rubber Shoes are way more memorable, and pretty much occupy the same niche. I mean, I can't see how it hurts to have it on (and no, item attribute slot limitations are no longer a concern; I condensed them a while back and now have a fair number of free slots lying around, hence why I'm throwing these new ideas into the air.)