Konami wants to remove cards that are given "instant staple" status. Right now, any beast-warrior deck NEEDS 3 tenki if they want anything near consistency. Unfortunately, this also means that bear (and occasionally some of the other fire fist stuff) are also dumped at 2 or more, instantly converting any deck into the same deck with more consistency and damage potential. - I agree that the Bear engine is somewhat derpy, but I wouldn't exactly call a searcher for a generally weak type an "instant staple". Before Tenki, BWs didn't have any consistency cards whatsoever, and again, it's not like the decks using it are grabbing all the spotlight. This will most likely change when SBs and Rulers are hit, and in another format (like the time we saw before Tachyon), Tenki could well be a problem card. However, my point is that no decks reliant on Tenki are doing anything hitworthy at the moment.
yugioh isn't meant for a player to sit on one monster for the entire game. when it turned into that with macro rabbit, konami decided to change things by making the meta so high-speed, it would be impossible for a deck that relies on 1 card with a bunch of backrow (bujin weapons in this case) to easily survive. - Rabbit was a strong tier 1 deck that contested effectively with Windups and Inzektors, could even stand up decently to Chaos Dragons and crushed rogue decks. Bujins aren't a force of that level in comparison to the other decks of this format, so they're not really comparable. They may be next format, though.
yamato is bad design because he constantly thins the deck, letting you get your pieces into place, and does so for next to no cost.
yamato sends 1 card from your hand at resolution, meaning macro cannot stop it from doing the search. - He does all this, but it's the only actual play Bujins have. Meaning that if they don't get Yamato/Tenki early on, or those are countered, a Bujin player is in for a very bad time. Also, anything that can bring out 2 or more effects/bosses a turn (not too rare as it is) will usually be able to get rid of him.
As for Macro, it may not stop the searching itself, but it prevents the use of Mura and Hetsu. Basically, a Bujin deck under Macro won't be able to keep Yamato protected from effects, and he'll wither away quite quickly.
yamato can pitch ANY card from your hand for its effect, meaning every single card in your hand is the equivalent to a bujin ROTA.
now, this wouldn't be so bad (flying saucer musakii and dragon ravine come to mind), but those two have their own slew of weaknesses. -A Bujin RoTA, yes, but what RoTA? One that either searches for another Yamato (that you can't summon, which means you're not really getting anywhere) or something reliant on the opponent not getting rid of Yamato. Hetsuka/Habakiri aren't an insurance on their own, as decks dishing out multiple dangerous effects/beaters in one turn isn't an uncommon sight.
ravine can be easily destroyed because it does not search its own protection. unless you open with an out to yamato, you're effed. they drop the shield turtle, your negators are useless. they add bujin honest, your attacks are useless. - Ravine is faster than Yamato and more versatile. Furthermore, the thing is that Dragunities have other things to do than Ravine. While it does make their plays much stronger, they can even OTK without it under the right conditions. Take away Yamato and the remaining Bujins are nothing, which is why he simply has to be hard to get rid of for the deck to function at all.
so what if they've only topped 1 tournament (they've gotten fairly close in far more than just 1)? Notice that I said shop tournament, as in a very small one. If they've had any tops later, I'd love to see them.
yamato is single-handedly the most ungodly version of ophion, honest, audreus, and gadgets that this game as ever seen.
just like the outcry for SBoFate getting hit, yamato just does too much for one card. - But SBs have Priestess, Kycoo, Power, Maiden and other stuff that does dangerous things as well. Bujins only have Yamato. I wouldn't mind if some of his qualities were spread out on multiple cards, but he's not that terrible as he is.