Well, congratulations on reducing all incentive to win (normal) KvKs to 0.

Gold inflation? GGMs were a joke before (no bonus on finishing them, the gold you yield in a given time is less than it would take you to buy the equivalent rss you can yield on the same time, even using the best rss:gold ratio) and more time boost (along with time boost demand inflation) simply means the one thing you should've been spending your mined gold on (huge boost coffers) is now becoming an insignificant drop in the ocean of time-boosts you'll be using.

Add that to the fact that even with the best possible gear (well, 2nd best since the new arsenal gear; But it's too weak of an improvement going from 1/420% to 1/470% - hardly a 9% reduction - to null the argument) and 27-30 clicks you are still left with 3-8weeks on your building/study.
This leads to a situation in which it really doesn't matter if you do or don't have the 10%bonus on construction and study from the KvK - just boost (&start the new action) after you win the RKvK that follows, or the next KvK, or the next RKvK, or the next-next KvK, or the [...,] 8 weeks in the future.
Not having the bonus after any given event is now a non-issue, you can easily just wait it out till you get a "long straw" and an easy KvK match-up and boost your stuff then.

So there you have it, no meaning to winning (or not) on any certain KvK event whatsoever. You just need to get the checkpoints done.

And since this an entirely new subject - you're doing the same with RKvKs, albeit slower.

The flat% bonuses have the same justifications.

Right now as it is with 8 marches and only lvl 21 production buildings, yielding 8 or at least 7 (yes, my kingdom will kill me for saying that) 7-tiles after every won RKvK (we only lost 1) and my (rss produced in town):(rss yielded) ratio has gone in 3 weeks from being 1:10 to being 2:1.

The more production studies I get done or higher lvl producers in town (same for others), the faster this gap will open. This rss inflation will quickly mean the gained delta of yielded rss with 7tiles compared to 6 tiles will become insignificant, and fast.

These 2 things will eventually lead to sold-wars in a quid-quo-pro system orchestrated on voice-chat rooms people already use now to coordinate kingdom conduct  on events.

Jake said:

But new checkpoints with gold is great

That's actually not entirely true. In most cases, the first 3 checkpoints have significantly reduced rewards from what they used to (especially when you now count the fact that all non-time-non-gold rewards are removed).

Add the fact that in most cases the first 3 checkpoints now require more points and/or that scoring ratios were lowered (this RKvK hitting Alpha Assailants awarded half the points they did 2weeks ago) and your statement isn't cut-clear anymore (I'm being mild).

Add to that the fact that some checkpoints (especially in the personal checkpoints category) will cost you several times more (sometimes even in order of magnitude) to span the required points-gap than the rewards will net you; And then you get a more correct statement:

    The new checkpoints are often a bad joke at best, and a retard-lure at worst.